Often the shortcut for "show color selector" won't work right after starting krita. It only starts working after I paint something. I use custom shortcuts, if this makes any difference. Reproducible: Always
When I use default shortcut (shift+I), it is working from the beginning. If I set up custom shortcut for the "show color selector", it does not work at all. Instead, default shortcut still works. So it seems that reassigning shortcut for color selector does not work.
This is the same issue as https://bugs.kde.org/show_bug.cgi?id=344907 -- some actions are only properly initialized (still!) after a document is created, so they fall back to their defaults. It's also the reason some actions don't appear in the toolbar... *** This bug has been marked as a duplicate of bug 344907 ***