Siril execution error with CR2 files

I am attempting to stack Canon CR2 files in Siril 1.2.0 running on Windows 11. I am using biases, flats, darks and lights in OSC_Processing. Siril gets to line 63 and fails. Folder and file security is set to Full Control. What causes registration to fail? I have also included one CR2 file for reference. The log file has the following (Sorry about the log length):



seqfile 'bias_.seq' already exists, not overwriting
seqfile 'dark_.seq' already exists, not overwriting
seqfile 'flat_.seq' already exists, not overwriting
seqfile 'light_.seq' already exists, not overwriting
seqfile 'pp_flat_.seq' already exists, not overwriting
Writing sequence file pp_light_.seq
Sequence found: pp_light_ 1->30
Reading sequence file `pp_light.seq'.
Reading sequence failed, file cannot be opened: pp_light.seq.
Reading sequence file `pp_light_.seq'.
bitpix for the sequence is set as -32
log: Registration: processing using method: Global Star Alignment (deep-sky)
log: Interpolation clamping active
Memory per image: 206 MB. Max memory: 3684 MB
log: Global star registration: with the current memory and thread limits, up to 4 thread(s) can be used
log: Reading FITS: file pp_light_00001.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Reference Image:
log: Findstar: processing for channel 1...
log: Found 137 stars in reference, channel #1
log: FWHMx:        3.45 px
log: FWHMy:        2.41 px
log: Global star registration: processing...
log: Reading FITS: file pp_light_00001.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Reading FITS: file pp_light_00015.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Reading FITS: file pp_light_00009.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00019.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Saving FITS: file r_pp_light_00001.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Reading FITS: file pp_light_00002.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 113 stars in image 15, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=2.4316e+01 Nr=1 Nm=0 sx=0.0000e+00 sy=0.0000e+00
atRecalcTrans: only 1 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 15 skipped
log: Found 79 stars in image 19, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 19 skipped
log: Found 133 stars in image 9, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=1.3546e+03 Nr=1 Nm=0 sx=0.0000e+00 sy=0.0000e+00
reset_A_coords: handed empty list, will do nothing
atRecalcTrans: only 0 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 9 skipped
log: Reading FITS: file pp_light_00016.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 103 stars in image 2, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 2 skipped
log: Reading FITS: file pp_light_00010.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 117 stars in image 16, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 16 skipped
log: Reading FITS: file pp_light_00020.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00003.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 78 stars in image 10, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=1.5859e-21 Nr=2 Nm=0 sx=0.0000e+00 sy=0.0000e+00
atRecalcTrans: only 2 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 10 skipped
log: Reading FITS: file pp_light_00017.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 96 stars in image 20, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 20 skipped
log: Reading FITS: file pp_light_00011.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 133 stars in image 3, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 3 skipped
log: Reading FITS: file pp_light_00021.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 148 stars in image 17, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 17 skipped
log: Found 131 stars in image 11, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 11 skipped
log: Reading FITS: file pp_light_00004.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00018.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 85 stars in image 21, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=1.3056e+03 Nr=1 Nm=0 sx=0.0000e+00 sy=0.0000e+00
reset_A_coords: handed empty list, will do nothing
atRecalcTrans: only 0 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 21 skipped
log: Reading FITS: file pp_light_00012.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00022.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 187 stars in image 4, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 4 skipped
log: Found 89 stars in image 18, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 18 skipped
log: Found 71 stars in image 12, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 12 skipped
log: Found 86 stars in image 22, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 22 skipped
log: Reading FITS: file pp_light_00005.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00025.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00013.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 97 stars in image 25, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 25 skipped
log: Reading FITS: file pp_light_00023.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 98 stars in image 5, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 5 skipped
log: Reading FITS: file pp_light_00026.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00006.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 90 stars in image 23, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 23 skipped
log: Found 120 stars in image 13, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 13 skipped
log: Found 119 stars in image 26, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 26 skipped
log: Reading FITS: file pp_light_00024.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 134 stars in image 6, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 6 skipped
log: Reading FITS: file pp_light_00014.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00027.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 96 stars in image 24, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 24 skipped
log: Reading FITS: file pp_light_00007.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 106 stars in image 14, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
log: Found 95 stars in image 27, channel #1
atFindTrans: iter_trans unable to create a valid TRANS
using min_scale 0.900000, max_scale 1.100000
initial call to atFindTrans failedusing trans_order 1

atFindTrans: iter_trans unable to create a valid TRANSNo limits set on relative scales for matching.
using trans_order 1

initial call to atFindTrans failed
atFindTrans: iter_trans unable to create a valid TRANSNo limits set on relative scales for matching.
using trans_order 1

atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 27 skipped
log: Cannot perform star matching: try #3. Image 14 skipped
log: Reading FITS: file pp_light_00028.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 125 stars in image 7, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 7 skipped
log: Found 86 stars in image 28, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=6.1966e-22 Nr=2 Nm=0 sx=0.0000e+00 sy=0.0000e+00
atRecalcTrans: only 2 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 28 skipped
log: Reading FITS: file pp_light_00030.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00029.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Reading FITS: file pp_light_00008.fit, 3 layer(s), 5202x3464 pixels, 32 bits
log: Findstar: processing for channel 1...
log: Found 105 stars in image 30, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
log: Cannot perform star matching: try #3. Image 30 skipped
log: Found 123 stars in image 29, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=1.1214e+03 Nr=1 Nm=0 sx=0.0000e+00 sy=0.0000e+00
reset_A_coords: handed empty list, will do nothing
atRecalcTrans: only 0 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 29 skipped
log: Found 152 stars in image 8, channel #1
using min_scale 0.900000, max_scale 1.100000
using trans_order 1
atFindTrans: iter_trans unable to create a valid TRANS
initial call to atFindTrans failed
No limits set on relative scales for matching.
using trans_order 1
using trans_order 1.
Initial trans structure:
 sig=1.9191e+03 Nr=1 Nm=0 sx=0.0000e+00 sy=0.0000e+00
reset_A_coords: handed empty list, will do nothing
atRecalcTrans: only 0 stars in list(s), require at least 6
atRecalcTrans fails on matched pairs only
log: Cannot perform star matching: try #3. Image 8 skipped
log: Sequence processing partially succeeded, with 29 images that failed.
log: Execution time: 38.75 s
log: Registration finished.
log: 30 images processed.
log: Total: 29 failed, 1 registered.
Writing sequence file r_pp_light_.seq
Writing sequence file pp_light_.seq
log: # Stack calibrated lights to result.fit
log: Running command: stack
1697485481: running command stack
Reading sequence file `r_pp_light.seq'.
Reading sequence failed, file cannot be opened: r_pp_light.seq.
Reading sequence file `r_pp_light_.seq'.
bitpix for the sequence is set as -32
Reading sequence file `r_pp_light_.seq'.
bitpix for the sequence is set as -32
log: Stacking sequence r_pp_light_
number of filtered-in images: 1
log: Provided filtering options do not allow at least two images to be processed.
log: Execution time: 4.23 ms
log: Setting CWD (Current Working Directory) to 'C:\Users\TRO\Documents\NGC 6888 DSLR'
log: Script execution failed.

NGC 6888 DSLR_2023-10-15_21-42-57_28c_300.00s_0006.cr2 (26.1 MB)

I’m surprised by the number of stars found in images, for this image the default detection finds about 10000, the logs show around 100. Did you change the star detection settings like this?
The error is that registration cannot find a match between images and the reference, is the reference looking normal compared to the others?

@vinvin is right. Take a look at the star detection within the image you gave us: