And another one!
After hiring some idols in an audition (was nationwide and I hired 4 out of the 5, not sure if that's relevant) the dialogue for the idol wouldn't come up, and clicking around would just click the background elements as if the idol wasn't there:
Just in case it's relevant, this idol's trait is Forgiving and she had a gold background and a rating of 80.
I'm not sure what triggered it, I'll try to reproduce it again.
Edit: Happened again in another audition, I didn't do anything particularly different. 2 hires, first one was gold, the other was silver.