Every time you move a layer in the layer stack (move up/down, change parent etc.), the layer thumbnail goes blank for ~5s. And if you undo the change before the thumbnail is regerated, it doesn't get restored until something else triggers thumbnail updates. Krita master f0a28f5ad2e2f5f7950a1b4cbfd7eb55fbbfe8af
Git commit 0e564cea6ee24d57b388662d1bd4b5767d55fed2 by Dmitry Kazakov. Committed on 16/05/2023 at 12:38. Pushed by dkazakov into branch 'master'. Fix layer thumbnails not to reset on every node move M +2 -0 libs/ui/KisIdleTasksManager.cpp M +21 -1 libs/ui/KisLayerThumbnailCache.cpp M +2 -0 libs/ui/KisLayerThumbnailCache.h M +2 -5 libs/ui/kis_node_model.cpp M +0 -2 libs/ui/kis_node_model.h M +0 -1 plugins/dockers/layerdocker/LayerBox.cpp https://invent.kde.org/graphics/krita/commit/0e564cea6ee24d57b388662d1bd4b5767d55fed2