https://bugs.kde.org/show_bug.cgi?id=460461
Bug ID: 460461
Summary: Using line tool repeatedly and undoing results in
irrecoverable data loss of tile data.
Classification: Applications
Product: krita
Version: 5.1.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: OpenGL Canvas
Assignee: krita-bugs-n...@kde.org
Reporter: ra...@raghukamath.com
Target Milestone: ---
SUMMARY
I think this bug is of a bit serious nature as it results in data loss.
We got two users complaining on KA about tile crashing and resulting in data
loss while using the line tool and undoing the actions repeatedly.
I am copy pasting Freyalupens remarks here :
"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.cc, line 275, and redoing in line 332.
(For fun I turned on all the logging options. The Unknown transform parameter :
"" being logged is from kis_dynamic_sensor::id2sensor(). The brush is trying to
use some sort of incorrect sensor or something, but the message is very
unhelpfully worded.)"
You can check the thread where this bug is discussed here -
https://krita-artists.org/t/using-brush-or-line-tools-sometimes-delete-part-of-the-layer-in-a-square-rectangle-pattern/48985
There is also a video of the bug happening in the thread linked above.
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