Last updated on
15 July 2022
Issue: After Effects skips several frames after a RAM preview is initiated
When a RAM preview begins to play, the first several frames of the video do not play the first time through. Subsequent loops through the same RAM preview duration play all frames. This bug with Mac OS X 10.10 (Yosemite) affects all versions of After Effects.
Solution 1: update to After Effects CC 2015 (13.5.1)
Previewing a composition is changed significantly in After Effects CC 2015 (13.5.1), so frames are not skipped in during preview.
Solution 2: downgrade the operating system to Mac OS X 10.9, or earlier
Downgrade Mac OS X to 10.9, or earlier to avoid this issue.