Some Clefs and time signatures show as empty rectangles
In my first attempt to try the recently released MuseScore 2.0 Beta 1, there are several clefs and time signatures that show as only empty rectangles.
I downloaded the source and compiled from scratch, after installing Qt5 on my system. This is under Gentoo linux, and I have tried this on two different systems (amd64 and x86) with the same results.
In particular, the treble clef 8vb (all the vb and va clefs) and the common time and alla breve time signatures do not render.
The symptom is as follows: in the time signatures or clefs pallettes, all the choices are shown, and they are correctly rendered. When you drag, for instance, the treble clef 8vb choice from the pallette to your score, once you cross into the score, what you are dragging is an empty rectangle. The clefs that work show as fully rendered graphics when dragging them to the score.
I believe I have all the required dependencies installed on my systems, but the list of what is required is not very clear.