Community Manager

Released

P: Glitching playback, including green flashes, during playback and export of 10-bit 4:2:2 media on Windows

122 replies
1925 views
Translate

We're receiving reports of customers in Premiere v26.5 having glitching issues, such as green flashes, during playback and exports.

The issue appears to be specific to media that is:

Long GOP
Recorded in the MXF container
10-bit 4:2:2
Recorded using a Canon camera, including the EOS R5 C, EOS C50, EOS C70, EOS C80, and EOS C400

If you are having this issue with a file that doesn’t match this description, we are eager to hear from you.

We are currently investigating with a top priority to fix this. For now, the temporary workaround is to roll back to v26.3.2. Apologies for any frustrations with this and appreciate your patience while we investigate.

Thanks!
Katie

Pinned Reply By Fergus H

Hi all,

We have identified the cause of this problem and fixed it. A patch for v26 that includes this fix will be available very soon, likely in less than one week.

The fix is also now in Premiere Beta v27.0, build 57 or higher. While we do not suggest customers use beta for production, it is safe to install the beta alongside v26 if you would like to test the fix yourself.

Some customers in this thread have said that rolling back to a version of Premiere v26.x before v26.5.x did not fix the problem - even with the older version, green flashing was still seen in the media. If you’re experiencing this, please hold down the shift key and launch Premiere. In the Reset options dialog that appear, check the box to clear the media cache.

Regards,

Fergus

View reply

Show previous replies

Serendipitous_friendd38a

Participant

In Premiere Pro 26.5, the Program Monitor occasionally flashes completely green for a split second during playback when editing Canon R5C MXF footage recorded in C-Log 3.

The issue occurs only with C-Log 3 footage. I tested multiple NVIDIA driver versions, including the latest driver and several previous versions, but the problem persisted.

When I downgraded to Premiere Pro 26.3.2, the issue disappeared completely. The same footage plays normally with no green flashes.

Issue:
Green flashing in the Program Monitor during playback of Canon R5C C-Log 3 MXF footage.

Steps to Reproduce:
Open Premiere Pro 26.5.
Create a new project.
Import Canon R5C footage recorded in MXF format with C-Log 3.
Create a sequence using the imported footage.
Play the footage in the Program Monitor.
During playback, the Program Monitor occasionally flashes completely green for a split second.

Expected Result:
The footage should play normally without any green flashing or visual artifacts.

Actual Result:
The Program Monitor occasionally flashes completely green for a split second during playback. The issue occurs with Canon R5C MXF C-Log 3 footage.

The same footage plays perfectly in Premiere Pro 26.3.2 on the same system, with no green flashes.

Screen Recording:
I can provide a screen recording showing the issue.

Premiere Version:
Adobe Premiere Pro 26.5

Operating System:
Windows 11 64-bit

GPU Driver:
NVIDIA Studio Driver [616.92]

Video Format:
Canon EOS R5 C, 4K UHD, MXF, C-Log 3, 10-bit 4:2:2. The issue occurs during playback of multiple Canon R5C MXF C-Log 3 files.

Translate

Vardan Harutyunyan

Amy the Stuv

Community Manager

Hello @Serendipitous_friendd38a

We have merged your post onto this one to help us better track the issue and update the community as we work on resolving it.

Thank you,

Amy

Translate

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.