in memory image corruption during editing - persists after save/revert, save restart.
Environment/Versions
- GIMP version: gimp-2.10.30-1.fc36.1.x86_64
- Package:
- Operating System:
Description of the bug
I've seen this happen sporadically for years working with gimp. I can't pinpoint an introduction timeframe for it, no concrete reproducing steps. Which makes part of this extremely difficult, I know.
Generally I'm aware of this when I have an image with several layers, with one of them being transparent, in overlay mode. I airbrush in either black or white, and when I smudge I sometimes get a 'corruption' where a pixel area will go to hard black, and this black will smudge to full black as well.
Today when it happened, I played around a bit and have this down to a few pixels in the image. Cloning does not overwrite these pixels. Copy->Paste another area of the image does not overwrite these pixels. Attempting to heal tool this area causes the entire brush area to become this hard black - seeming to spread the corruption. The corruption seems to persist after save and revert of the image, so it's not just present in the in-memory version. I've restarted gimp and opened the save file and the corruption is still present. I've attached a crop of the area saved into a new file which still seems to exhibit this behaviour locally.
I have this file now, and maybe one other where I've saved and worked around the issue.
Reproduction
Is the bug reproducible? Randomly, and infrequently at that.
Reproduction steps:
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Expected result:No image corruption
Actual result: Corrupted and uncorrectable image, with a corruption that persists across saves and restarts.
Additional information
If you have a backtrace for a crash or a warning, paste it here. Untitled.xcf