Green Line Appears on the Right Edge When Exporting ProRes in Premiere Pro

Hello everybody,

I’m experiencing a persistent issue when exporting my project in ProRes from Premiere Pro: a green vertical line appears on the right edge of the video.

Details:

• Premiere Pro version: 25.5

• OS / Hardware: MacBook Pro M3 Max / macOS 13.5, Sequoia 15

• Sequence settings: 2500x1500, standard frame rate of 25 fps (match source), no adjustment layers or effects that could cause this

• Export settings tested:

  • ProRes MOV (422, 422 HQ, LT) → green line appears

  • ProRes MXF OP1a → green line appears

  • Media Encoder export → same result

  • H.264 export → line does not appear

Troubleshooting steps attempted:

1. Checked sequence dimensions and confirmed they match standard formats.

2. Tried different ProRes variants (LT, 422, HQ) and both MOV and MXF containers.

3. Exported via Media Encoder instead of direct Premiere export.

4. Considered cropping 1 pixel on the right (temporary workaround, but not acceptable for master quality).

The line only appears in ProRes exports, not H.264. This seems like a ProRes-specific rendering bug, possibly related to Premiere’s internal ProRes encoder on Apple silicon?

Has anyone else encountered this issue? Are there any known fixes or workarounds that preserve full ProRes quality without cropping?

Thank you in advance for any advice!