P: Premiere EXTREME lag with proxies V25.2.3

Hi @Dani_V. sorry for the delayed reply, I typed out my response but never posted.

1. GPU: RTX 4080 Super

2. You're right, it's easier to notice when you have more hours of b-roll. Here's an updated link with all the b-roll and proxies: 
https://www.dropbox.com/scl/fo/p160j5jbk3nfss3vxmmdm/AFa17VAI11HlEy7Qwl0z8yk?rlkey=up4fp9rj2s6bvy3bxuok0ds0b&st=5rsklxm3&dl=0
3. Tried it without any plugins enabled like you suggested, doesn't fix it.

4. Tried h.264 and DNX proxies, didn't work.

Let me know if there's anything else I can provide.

Hi @Will27540326c9gz,

Jumping in here, thank you for sharing your project and media. What model GPU do you have?

It's interesting because I am not seeing the playback issues with the project and files you shared on my end, though it is clear there is a performance difference for you just from your screen recordings alone. We can try to narrow this down:

First, I am wondering if this could be because we don't have all the files, only the first few so it's less to go through, or if it could be related to the mixed sources of media in the timeline—how is the playback of a sequence with only the FX3 files? Would you be able to share the entire pool of media used?

Something that jumps out is the GoPro FX Reframe plugin that is showing up as offline for us—have you tried starting up Premiere holding down a modifier key (like Shift), and choosing ‘Disable third-party plugins (one-time only)’? This should offline your plug-ins for that session, and it would at least rule them out—some plug-ins can sometimes cause issues with updates.

Another thing that could help narrow down the issue—have you tried creating H.264 proxies instead, attaching those, and seeing if this affects your playback? Maybe we can see if this is specific to the ProRes proxies themselves.

Sorry you're experiencing issues,
Dani

Hi @Rach McIntire , have you had a chance to take a look at my files by any chance? Any fix?

Just tried it, didn't work.

Yes, just for testing's sake.  This resolved a similar, but not quite the same issue for another user and will at least rule that out if nothing else.

@Rach McIntire Thank you. When I go to "Use Frame Rate from File" both the original clips and proxies show "59.9401". 

When using MediaInfo, it shows "59.940" for both of them. Are you suggesting I "interpret frame rate as" 59.940?

Thanks @Will27540326c9gz ,
I've got you media downloading now and will see what I can learn.  

Something you could try while we look into this more—if you go to your clips in the Project window, right-click to Modify > Interpret Footage, does the 'Frame Rate from File' match the proxy frame rate? So, for example, if MediaInfo says the source and proxy file is 60.000 fps, and the 'Frame Rate from File' is reading 59.9736, or a non-standard fps with a different decimal, select 'Assume this frame rate' and write in the 60.00 fps. Does this change your playback with proxies at all? We might be able to narrow down the problem this way.

Hi @Rach McIntire , thanks for your response.

1) Proxies were made by right clicking on the footage > proxy > create proxies. Same way I do it for all my other projects.

2) Working with Prores 422 Proxy.

3) Footage FPS is 59.94 fps. However, when I go to interpret footage, it shows as "59.9401". This shouldn't be the issue though, because the proxies also share the same FPS, and when I manually drop them onto the timeline, they're smooth. Plus, all my other projects were shot on the same FPS and the problem never occured with older Premiere versions.

4) Enabling or disabling High Quality Playback doesn't change anything.

5) Hardware acceleration: it's enabled, disabling it doesn't make a difference.

6) Yes I have effects and 3rd party plugins installed, lots of them so it'd take a while to pin point which one is causing the issue, if any. And I don't currently have other footage to test this with.

7) FPS of the proxies and original footage match perfectly.

😎 Here's a folder that has a few of the original clips + the proxies I'm using: 

https://www.dropbox.com/scl/fo/p160j5jbk3nfss3vxmmdm/AFa17VAI11HlEy7Qwl0z8yk?rlkey=up4fp9rj2s6bvy3bxuok0ds0b&st=qzanuwdr&dl=0

Hi @Will27540326c9gz, 

Thanks for submitting your bug report.  I also really appreciate the two videos; they demonstrate the difference.  I will look into this more.  XAVC-SH is a long-GOP format, so that may be one thing to consider.  We never like to see performance degradation between versions, though.  A few more questions:

How were your proxies made?  What kind of proxies are you working with, and what frame rate is your footage? Right-click on the Program monitor, check if "High Quality Playback" is selected, and deselect it if it is.

Do you happen to have hardware acceleration enabled under Preferences > Media? Have you tried disabling it to see if you notice a difference?

Do you have any effects in use or third-party plugins installed, and have you noticed this with any other kind of footage?

Would you be able to provide your project file and a sample video clip for us to test with internally?  Can you also confirm that the frame rate of your proxies and original media match exactly?  

I hope we can help you soon. Sorry for the frustration!