Should I update After Effects?
After Effects 26.5 · Known bug
Refine Edge Matte smoother glitches on blank precomp frames
Not marked fixed as of After Effects 27.0.0. The bug was reported for After Effects 26.5.0. Adobe tracks it (status: Investigating). It happens on macOS only. There is a workaround.
- Status
- Not fixedAdobe: Investigating
- Severity
- Major
- Affects
- Specific feature
- System
- macOS only
Workaround
Trim the precomp to footage length, duplicate the frame before, or extend head frames so no blank frame precedes the matte.
Timeline
- Oct 14, 2026Reported on After Effects 26.5.0
- Nov 10, 2026Not marked fixed as of After Effects 27.0.0Adobe: Investigating
The report
0 votes · 1 reply
Reported on macOS by 1 person (from the report and 1 reply).
“roto brush v4 Refine Edge Matte with Smoother first frame glitch if the precomp frame prior is blank”
Read it on the Adobe Community boardBased on public bug reports on the Adobe Community board. Last changed November 10, 2026. The title and rating are ours; the report is the reporter’s. Not affiliated with Adobe.