Hi, first some data about my system: Krita 4.1.0 appimage OS is OpenSuse Leap 42.3 AMD Quad Core Wacom Intuos 4 Tablet Up to date Open GL Drivers Description to reproduce bug exactly: Open up Krita Open a new or existing document Choose a Brush (any Brush with Brush Tip option will do) Open "Edit Brush Settings" Click "Brush Tip" in the general section and click "Predefined" Click (not drag) the "Size" slider. Size will change properly Drag the "Size" slider... Dialog box with error message pop's up Note: This error does not occur in Krita 4.0.4 Error message pop up: Krita has encountered an internal error: SAFE ASSERT (krita): "m_d->lastKnownValue.isNull() || result == m_d->lastKnownValue" in file /home/appimage/workspace/Krita_Release_Appimage_Build/krita/libs/flake/KoDerivedResourceConverter.cpp, line 70 Link to forum thread in forum.kde.org: https://forum.kde.org/viewtopic.php?f=139&t=153065 I hope i could be of any help. If you need more information please drop me something here.
Hi, I can confirm the bug report.
Fixed in commit 6aa6cd60d0be9638e5fc83266d77973ea89f6e73 Author: Boudewijn Rempt <boud@valdyas.org> Date: Tue Jul 10 15:32:38 2018 +0200 Remove illogical assert