I'm receiving an odd error message while rotobrushing in After Effects CS6 11.0.4 on a Mac using OS X 10.10.5 (Yosemite).
I get this error every time I attempt to modify the parameters of the rotobrush, and the frame goes dark although if I move to a different frame and then back, it's there again, unmodified. I've emptied the disk cache, repaired permissions, and Multiprocessing has been turned off by default.
I've extensively roto'd this 9 second clip, with no issues, and then added some more layers of effects. Now, a few days later when I return to refine the roto, I start getting this error on every frame. Thanks in advance for any assistance provided!
Start by clearing all you r caches. See if it helps.
Thanks for responding, but as I mentioned, I have already done so.
It seems that by turning off the Refine Matte function of the Roto Brush tool, the errors have stopped. I don't know why, just glad to be able to continue with my project!