BUG: not displaying categories etc

CB pro 9.5.1

This has been happening a while (a few weeks at least, I think prolly 9.5.1 done it cause IIRC it was working with 9.5.0)

I want to load another instrument program, but you will see the styles,category etc are empty
to make them visible, I have to do the following steps

nothing there

select something else eg ‘GM sound’

then reselect whatever should be showing in the first and now it works

OK so I select an instrument program, I dont like it and I want to select another cause I’m not happy, everything has disappeared again, so I have to repeat the above steps again

Its not major, I’ll prefer the small font menu bug to be fixed but it is a bit of a PITA