Should I update After Effects?
After Effects 26.0 · Known bug
Preview and export rendering much slower in version 26
Not marked fixed as of After Effects 27.0.0. The bug was reported for After Effects 26.0.0. Adobe tracks it (status: Investigating). There is a workaround.
- Status
- Not fixedAdobe: Investigating
- Severity
- Major
- Affects
- Common workflow
- System
- Windows and macOS
Workaround
In Preferences > Disk, turn off Enable Compressed Frames (Lossless); several reporters said performance returned to normal.
Timeline
- Feb 2, 2026Reported on After Effects 26.0.0
- Nov 10, 2026Not marked fixed as of After Effects 27.0.0Adobe: Investigating
The report
19 votes · 16 replies
“Why is After Effects v 26.0.0 dramatically slowing down all preview and export rendering?”
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.