If I get into combat I can't use the LiteMount hotkey to dismount my dragon. It's been like this the whole expansion and I'm really hoping it can be fixed.

It's working fine for me. You probably have a custom combat macro that you need to fix or disable.

Huh. You're right. I guess it just was never an issue prior to dragonriding because I could just use my normal bar's abilities and that would dismount me. My bad.