darktable 4.1.0+109~g4ea7e5d5c nightly build on Windows 11
Just came across this for the first time tonight. Everything looks normal until I enable crop AND rotate and perspective simultaneously. Very bluish cast, blotchiness in the water, etc.
Maybe you still have the crop&rotate module enabled and active (I mean ready to crop some areas) when you see the color shift? I’m thinking about that because when cropping some slow modules are just pass-through to make the cropping fast.
(seems not the case as in your screenshot it seems that the module is collapsed)
I’ll upgrade today and test again. I had run into some preview corruption with the latest version so I backed off a rev or two, but will try again.
To Pascal’s question, I had both modules collapsed and was just toggling each one off and on with their power buttons. It consistently produced the color shift.
Despite my answer earlier this morning, I think I’ll wait until Bill releases his latest build tomorrow and upgrade then. I’ll post an update afterward.