SDL2 was updated via this PR: https://github.com/msys2/MINGW-packages/pull/12793
Someone already started an issue in MSYS2: https://github.com/msys2/MINGW-packages/issues/12874
Thanks for all the info. Sounds like I’ll just wait a bit… I keep thinking of learning how to build it myself, but I’ve got too much on at present to concentrate on it. 
The nightly is running again.
Thanks for the update! I’ll try it when I get a chance
Nothing changes on my surface 8 with iris Xe.
After installing, as soon as I run it it shuts down.
I would like this resolved before 4.0.1.
Does it happen to anyone else?
I dont have a Surface system, so I cant test your issues. I’m concern with multiple installs you have. Are you sharing the same .config file across all these? Maybe use .\config_test
Can you provide a -d all from the build from last night?
2.827333 [camera_control] loaded 4 port drivers.
Seems to stop after libgphoto2 init… What are your CAMLIBS and IOLIBS environment variables?
Before launching in the command window, try:
set CAMLIBS=C:\Fotografia\Darktable\DT_41-crash\lib\libgphoto2\2.5.30
set IOLIBS=C:\Fotografia\Darktable\DT_41-crash\lib\libgphoto2_port\0.12.1
.\bin\darktable --disable-opencl --configdir “.\config” -d all
With multiple versions installed/present, these also need to point to the appropriate location for each different version.
Well, I know why it is. I will keep it in mind.
Thank you.
Bueno, pues ya se porqué es. Lo tendré en cuenta.
Gracias.
I knew there was an issue with the camera ports, but I forgot about these variables.
Arturo, since it is working, you could now try with OpenCL.
It works well for me.
I have changed these lines to true:
opencl=true
opencl_disable_drivers_blacklist=true
opencl_use_cpu_devices=true
And this is the result:
(I put it in English so that it is understood).
All other installations also work, including the stable 4.0.0 on Appdata.
This is a bit late, but just wanted to let people know that the nightly build as of the 5th Sep is working well for me. Thanks for all the help