I like to put the Reference Images Tool button in my toolbar. The problem I have been having is that every time I open Krita it disappears. I need to go to Settings > Configure Toolbars and pick any option, send it over and send it back, leaving my settings unchanged, and the Reference Images Tool button will reappear. I have been doing this for the last year or so, and it is a minor inconvenience, but if this is a bug it would be nice to see it patched.
Hello and welcome to the forum 
This has been formally reported and Confirmed:
https://bugs.kde.org/show_bug.cgi?id=413533
It’s now a question of waiting for it to be fixed, which may be difficult.
Thank you. I appreciate that. 
