After Effects has just now decided to start giving me errors during renders, specifically, this one "error: photoshop file format error - out of memory. (-108). (45 :: 35)
What Ae version?
are there any Ps files in your project? what do they contain?
if there are - what Ps version?
AE CC 2015.3
No photoshop files, only MOV or MP4
you should know this Os is not supported yet and Ae currently has bugs a plenty with it. this could be your problem. more about problems with Os 10.12 here:
macOS Sierra is definitely your issue. After effects was running flawlessly on El Capitan for me, but when I installed Sierra (on the same day), none of my comps were previewing in real time (even without effects applied). I'm going to uninstall sierra until they do an update.