Right now when we right-click on the Brush Presets docker, a context menu will popup. However, if you are "tapping (click-and-release)" the stylus side button to do call out the right-click menu, you will often find the menu disappears immediately after you release the right button. This is because as you release right button, Krita automatically selects the menu entry which the cursor is hovering. You don't see this happening because mouse can stay unmoved as you click its buttons, and by default when you right-click, the cursor is always just outside of the menu so nothing gets selected and close the menu. This is a very annoying usability issue that keeps nagging me for ages.
Created attachment 113878 [details] Brush Preset context menu right-click immediate select issues Notice the small "Key-mon" applet showing the duration of me tapping/holding down the right button on my stylus. This usability issue is very similar to what I reported in the past about the popup-palette (which is fixed now).
I'm not sure how to fix this, though...
Testing in Krita 5.2.6 the Brush Preset docker now requires clicking to close the right-click menu instead of just hovering away. That removes the issue found in this bug, setting to resolved.