Thanks for the reply Kevin.
Earlier today I tried your first suggestion (purging) and it appeared to work. I wasn’t sure if it was a fluke or not. Haven’t had to render any other projects since to test it out.
As to the codec, none was used. The images above where captured from an uncompressed .avi file.
Is there anything in the AE settings to have it automatically purge every so often? I don’t remember sucha setting but thought I’d ask.
Any other suggestions would be appreciated. especially since I like to batch render in AE and having to purge after each “make movie” render would kill that.