Photoshop 27.8 · Fixed bug
CMYK conversion shows black artifacts with GPU on
Adobe marked this bug fixed on October 15, 2026, in an update after Photoshop 27.8, where it was reported.
- Status
- Marked fixed by Adobe
- Severity
- Major
- Affects
- Specific feature
- System
- Windows and macOS
Workaround · if you stay on Photoshop 27.8
Disable Use Graphics Processor under Preferences > Performance.
Timeline
- Jun 30, 2026Reported on Photoshop 27.8
- Oct 15, 2026Marked fixed by Adobein a later update
The report
4 votes · 112 replies
Reported on Windows by 3 people, on macOS by 18 (from the report and 112 replies).
“P: Photoshop 27.8 & later Rendering Artifacts, Exposed Previews and Color Banding”
Read it on the Adobe Community boardBased on public bug reports on the Adobe Community board. Last changed October 15, 2026. The title and rating are ours; the report is the reporter’s. Not affiliated with Adobe.