i'm on 13.5, but maybe check to see if this issue can be replicated / fixed?
Stacking games will at times hide achievement badges, eg if the stack has a Beta in it, very common in Gen 4 consoles collections etc, Base's and reversions and betas and protos.
A Greyed trophy to illustrate achievements are available if you pick the right rom one, and some kind of indicator of which the right one is the right one could be a big help, maybe as well as a red one to show that achievements are available for the game at hand, just not with any of the roms provided in that particular titles grouping.
could have been somewhere better to put this, i'm sorry i couldn't find it in the time i had. good luck