Artifacts when Editing MXF Files in New Pr Versions

[Alexader26451758tcf7]

Hey all,

Summary: I'm running into an issue editing MXF files in Premiere Pro 24.5 and up.

The last version that I have not had this issue with is 24.2.1 which I am currently using. I've tested this in all subsequent versions to see if it was fixed, and I still encounter this issue, this has been happening across multiple machines on my team.

Details:

Footage recorded on a Canon C200 and Canon XA-70, MXF files 3840x2160 29.97, artifacts are introduced during editing and playback (see screenshot and video render examples). No other video files have produced the same errors

Attached are two video clips; one export shows the artifacts in an example render file, and the other one shows another export without artifacts for a different project. I attached a screenshot of what that section of the timeline looks like in Premiere, and you can see the artifacts are present during playback. 

I'm guessing the issue is MXF = MP4 long gop in a different wrapper, and it's not edit-friendly, and these artifacts are introduced during playback. This looks like bad compression and playback issues. When viewed in Premiere, the artifacts sometimes appear, but they do go away after a moment, and they don't always show. As shown in the export example, sometimes they appear in exports. Sometimes I can render the timeline and no artifacts will show. This likely has to do with Premiere unpacking and playing back the footage, as if the read speeds aren't fast enough? However I currently have no issues in older versions of Premiere.

Troubleshooting:

• I've tried replicating the issue with the footage on a local external SSD, internal SSD, network server, all producing the same results.
• Different timeline settings to match the source
• Clearing the media cache, resetting preferences, and resetting the workspace, I've done multiple clean installs of Premiere
• Changed the renderer settings to software only
• I have transcoded the footage to ProRes in Media Encoder (current version), but that will bake-in the artifacts in the renders.

The only solution I've found is to transcode the footage using Media Encoder (version 24.2.1). I would really like to update to a newer version, but at the moment I am unable to edit half of my team's footage. Aside from using an external recorder to record in a different wrapper/codec, or keeping a machine with an old version of Media Encoder installed, I am out of options, unless I just need a new graphics card.

PC Specs:

Current version where I encountered the bug: 25.1

Windows 10 Version 22H2 Build 19045.5371

Intel i7-6700K CPU

32.0 GB

NVIDIA GTX 1070 Driver version 566.36

[Kevin-Monahan]

Hi @Alexader26451758tcf7,
Thanks for the post. I’m Kevin from support, a moderator here. Welcome to the forum. Thank you for providing details about your system, media, and workflow. I hope the community or a developer will respond shortly. Sorry for the frustration.
 
Thanks,


Kevin

[Alexader26451758tcf7]

Thanks, Kevin. I just had a support agent remote into my machine after reaching out via the virtual assistant, but it was inconclusive. I've tested this in the live build as well as the beta version for 25.1. This is a screenshot from a test export I just did: 

[Kevin-Monahan]

Hi @Alexader26451758tcf7,

Sorry our agents were unable to help you. Hopefully, a developer will assist you shortly. Sorry for the frustration.

Thanks,
Kevin

[IanB_360]

Hi @Alexader26451758tcf7 

could you file share one of the raw .MXF files with us so we can test that out and try to get some details back to you?

Thank you

Ian

[Alexader26451758tcf7]

Hi @IanB_360, here's a share link to Google Drive for the raw footage: https://drive.google.com/file/d/1O-hFpaQ8YhxpP6DD__JrXOo00QEGvf-u/view?usp=sharing 

[Samuel Baulch]

Did this ever get resloved because I'm having the exact same issue

[psychorey]

Also having the exact same issue. I'm really starting to lose hope in Adobe as a company.

[Alexader26451758tcf7]

I have not found a solution for this, and it has not changed with recent updates. I'm still forced to work in both Premiere 24 and 25 at the moment.

[Jaesson0D4C]

i've also got this problem. my solution to my team was to XML the project over to davinci and render it there for delivery, while using proxy renders for review submissions. and subsequently ban longGOP and use intra from now on when filming. do let me know if you have a better workaround