Thanks for the quick response. What I was saying about the full screen was just that it was staying a solid and not conforming to the shapes, and I was definitely looking at the comp window, not layer.
I’ve done plenty of stuff like this before over the last few years and this is the first time I had this problem. Couldn’t figure it out, minimized AE, posted here, half an hour later I open AE and without changing anything the masks work the way they’re supposed to. Still clueless as to what happened..