So I am going crazy with this one... After Effects was crashing every time it went to do an auto save.
So I turned that off. Now I can't quite tell what is happening as the crashing is continuing.
I can't tell if it is still attempting to autosave and then crashing - or it is saving because of a crash.
Either way - making large changes to properties like scale, rotation causes after Effects to show a saving progress bar and then crash.
It saves out a version with an underscore so no data or progress is lost but it happens almost every few changes.
I have uninstalled and re-installed - still no change.
OSX El Capitain
Mac Pro (Late 2013)
3.7 GHz Quad-Core Intel Xeon E5
AMD FirePro D300 2048 MB
Adobe After Effects CC 2015 - just re-installed latest version via Adobe cloud.
Adobe - I need help with this. Deadlines are looming!! And if anyone else can help i would be very grateful.
Try installing CC 2015.3 instead of CC 2015 and see if it behaves properly.