I don't get a chance to sneak out

I've been playing the teens pack a while and haven't had a single Sim invited to a college party so I could get that aspiration. I read somewhere that it was a common issue, and somewhere else that you need to have both the window and the rebellious ivy trellis to even get the option. I have both, and it still hasn't happened. :(

Help thread:
https://answers.ea.com/t5/Bug-Reports/OPEN-HSY-Never-invited-to-parties/td-p/11687605