Layer content gone after transformation? (video demonstration caught!)

[Grum999]

Ok thanks for full video.

What happen here doesn’t seems to be normal.
For me it’s not the transform tool, but a problem with dynamic brush.

It seems to be similar to thjs one with line tool.

Using Brush or Line Tools Sometimes Delete Part of The Layer in a Square/Rectangle Pattern

For demonstration, here’s a video I recorded on 5.2.x (git 939408c), just repeatedly using the line tool for a few minutes; brush is “b) Basic-2 Opacity”. Before that I was using “b) Basic-1”, but nothing was happening, so I switched brushes. Could be it only happens with certain brushes, could be the act of switching brushes somehow triggers it, could be I was just (un)lucky. After a while it just randomly happens, trying to undo it causes a safe assert in libs/image/tiles3/kis_memento_manager.…

If you’re running on Windows (always a good idea to provide OS and krita version…) you can try version provided by @dkazakov here to check if problem still occurs:

Using Brush or Line Tools Sometimes Delete Part of The Layer in a Square/Rectangle Pattern

Hi, @freyalupen! Could you please check this new package? (or just update master to 6d87f89408cec4) krita-5.2.0-prealpha-line-issue-dk2.zip — Яндекс.Диск I have fixed a race condition in KisAsyncMerger::setupProjection that you pointed out. Tough I could barely reproduce it (even with custom msleep(10) calls and asserts), so I do need a confirmation that my fix actually fixes the issue

Grum999