By black do you mean nothing on them, or a black background?
I suffered the latter, thought maybe there was something to change on the G1000 but no joy. It all still works okay but doesn’t look as nice.
But I’d downloaded a G1000 fix into the Community Folder and after other problems with CF content I thought it may have been corrupted. As it happens a new release for the G1000 was issued shortly after the update so I’ve installed that,.
But haven’t had time yet to try it out (some of us unfortunately have other commitments and can’t spend all their time “playing games” as SWMBO tells me!