I tried rearranging the creative menu item order, and then Creator got stuck on the second task for 45 minutes, so I was forced to force quit the application. Upon opening back up my workspace, almost every item had a red error triangle. I tried reloading the individual elements and resaving them, which appeared to be working. Except, every time that I would do this, a new element would get the red triangle at the top. I tried resaving the elements as they popped up, except I noticed that some of the elements that I already resaved and appeared to compile correctly had the red triangle reappear.
Luckily I had made a backup very recently, so not much was lost, but this absolutely needs to be fixed :)