When I try to duplicate a module, I get an access violation code. Is this something that will be addressed in a future update?

I am currently using the teacher edition of EarMaster 6. (I will probably be upgrading to 7 when a coarse editor is available).

I have set up several user profiles (for my students).

I have noticed that in a couple of these user profiles, the "play your answer" button is greyed out. I tried ...