University Activity Issue

While my sim is enrolled in university classes and does the soccer team activity, only on game days (Friday and Saturday) in game, they come back at least an hour earlier than the end time of the activity. It still says they're at the activity and performing how I set it and says they'll be there until 9 pm, but at 7pm, they're back at the house doing things automatously...?

The only mod I have is UI cheats and nothing else; no CC and it doesn't correct when I turn script mods off and only started happening after the update. Any ideas?