need help. force suddenly doesn't work in the project.

Force was working up to a certain point, I have no idea what key I pressed or what setting I did to turn it off. It used to suck up the pieces of the roof but now it doesn't for some reason. Can someone help?

here's a link to my blend file. https://www.dropbox.com/sh/opuo7rypmqfht61/AADgKwzjMDEU_XnnrzPwf9yva?dl=0

  • spikeyxxx replied

    Maybe you need to Bake the Physics:

    It says Cache is outdated.

  • lokeuei replied

    that wasn't shown in the course. I had no idea you had to bake physics. Perhaps that's why there's a disconnect.