My sister's glitch is with her battle timer. Her inventory pops up for a split second, then is tucked away again and the automaton takes its turn. According to her (@Fawn_Anglemap1), this glitch happens to a battle sporadically. There is no apparent pattern. But if it begins in a battle, it continues to block her from taking her turn until she is defeated.
@Mech_Lightspark, I was going to contact Aetherlight support, but Jacoby said you are able to help with glitches.
I am going to troubleshoot it some more, but I wanted to post this in case someone else has experienced the same thing.