Severe visual glitch (pink/purple block covering the bottom half of the frame) during playback of Canon C50 Open Gate .CRM files.
Issue: Severe visual glitch (pink/purple block covering the bottom half of the frame) during playback of Canon C50 Open Gate .CRM files.
Steps to reproduce:
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Import Canon C50 Open Gate Cinema RAW Light (.CRM) footage into a project.
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Add the clip to the timeline or preview it in the Source Monitor.
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Play back the footage with the Video Renderer set to Mercury Playback Engine GPU Acceleration (Metal).
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Here is screen capture
https://drive.google.com/drive/folders/1fzr9rO6zlH1kBaeyd0443lkYmAFZI54l?usp=sharing
Expected result: Smooth and accurate playback of the RAW footage without any visual artifacts or color distortion.
Actual result: A massive pink and purple distorted glitch appears, covering the lower half of the video frame during playback.
Workaround found: Downgraded to Adobe Premiere Pro version 25.0, where the footage plays back correctly without any glitches. Alternatively, in version 26.0.1, switching the Renderer in Project Settings to "Mercury Playback Engine Software Only" temporarily removes the glitch, but significantly degrades playback performance.
Adobe Premiere Pro version: 26.0.1 (Bug present)
Operating system: macOS Tahoe Version 26.3
System Specs: MacBook Pro 16-inch (2023), Apple M2 Pro, 16 GB RAM.
Video format: Canon C50 Open Gate Cinema RAW Light (.CRM)
Comparative information: The hardware decoding (Metal) fails specifically on Premiere Pro 26.0.1 with Apple Silicon (M2 Pro). Rolling back the software to version 25.0 resolves the issue completely. This indicates a potential bug in the recent 26.0.1 update regarding how the Metal GPU acceleration handles this specific Canon RAW format.
