Should check for Android too, there are times when she is not available too. Might be good to require everyone to have a certain level.It's the same event, so in this case there should be checks for Maria and Slyvia to prevent it from happening. Just before it cuts to Slyvia on the couch you have a mini-pow wow with the girls all gathered up.
I sent him a message about it, so it should get fixed before too long. It's not like it's game breaking, just a bit of a bugger.