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Inspiring
December 18, 2024

Lumetri Effect huge input lag in PrPro 25.2.0 build 57

  • December 18, 2024
  • 50 replies
  • 5360 views

Trying to grade a clip in premiere pro beta but the lag time between making an adjustment and the program monitor updating is about 3-5 seconds. It used to be basically instantaneous. Enabling and disabling the adjustment layer also takes 5+ seconds for the pogram monitor to display. 

 

Clip has basic lumetri adjustment (exposure / shadow / etc) And above it is a adjustment layer with a lut (slog3 to 709 v2 provided by sony) and a creative effect lut from speed looks. So in node speak, that would be three adjustments or layers. It plays back the clip in real-time but making an adjustment is arduous with or without proxies turned on. 

 

Sometimes after awhile it will become more responsive but it still won't "live update" it will only update once you release the mouse button.

 

Tried clearing cache and prefs, but problem remains. 

 

Tech details: 

 

Windows 11

Windows v.10.0.26100.1

 

PrPro 25.2.0 build 57

 

NVIDIA GeForce RTX 2080 Ti v.32.0.15.6636

Studio Driver 566.36

 

Threadripper 3960x

256GB Ram

 

3840x2160 timeline 23.796

1920x1080 ProRes LT proxy media 

3840x2160 A7s III source media 

 

4129.mp4
Type: MPEG Movie
File Size: 800.15 MB
Image Size: 3840 x 2160
Frame Rate: 119.88
Source Audio Format: 48000 Hz - 16-bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Total Duration: 00:00:23:000
Pixel Aspect Ratio: 1.0
Alpha: None
Color Space: Rec. 709
Color Space Override: Off
Input LUT: None
Video Codec Type: MP4/MOV H.264 10 bit 4:2:2

 

Proxy Media

Proxy.mov
Type: QuickTime Movie
File Size: 1.08 GB
Image Size: 1920 x 1080
Frame Rate: 119.88
Source Audio Format: 48000 Hz - 16-bit - Stereo
Project Audio Format: 48000 Hz - 32 bit floating point - Stereo
Total Duration: 00:00:23:000
Pixel Aspect Ratio: 1.0
Alpha: None
Color Space: Rec. 709
Color Space Override: Off
Input LUT: None

 

QuickTime Details:
Movie contains 1 video track(s), 1 audio track(s), 0 closed caption track(s), and 1 timecode track(s).

Video:
There are 2760 frames with a duration of 1001/120000ths.

Video track 1:
Duration is 2760
Average frame rate is 119.89 fps

Video track 1 contains 1 type(s) of video data:

Video data block #1:
Frame Size = 1920 x 1080
Compressor = Apple ProRes 422 LT
Quality = Most (5.00)

 

Source Media on  2TB Sabrent Rocket 4 NVME(very fast ssd)

Proxy Media on 1TB Interal NVME SSD

Project on Sabrent SSD

 

 

50 replies

DaciaSaenz
Community Manager
Community Manager
March 3, 2025

@Scott.C.

WOO HOO!! I'm so excited to hear this! Thanks so much for letting me know and for your time. 

- Dacia Saenz, AE & PR Engineering Teams
Scott.C.Author
Inspiring
March 2, 2025

Just tested an adjustment layer and lumetri adjustment and the lag is gone. Seems to be fixed! Great work and thank you :-). 

DaciaSaenz
Community Manager
Community Manager
February 28, 2025

Hi @Scott.C. and all, 

 

We've finally got an in-house repro and have introduced a fix in Beta build 25.3 x 03. 
Please download this build and let us know if you're still seeing this issue or if things look resolved on your end. 

Thanks! 

- Dacia Saenz, AE & PR Engineering Teams
Scott.C.Author
Inspiring
February 24, 2025

@DaciaSaenz Nope, still super slow. Still weird disk reads  / huge lag time on adjustment layer tweaks or lumetric slider tweaks. Please do not ship this yet its very broken. 

Christian Leibig
Inspiring
February 23, 2025

I'm on Build 123 and the proble still persists.

 

I havea 2 minute timeline of an old project with mixed A7S3 and Drone footage which has a global adjustment layer with Lumetri on top of it. When I enable/disable the layer I have to wait 45 seconds for the program monitor to update and the timeline to be usable again. This is with Media Intelligence completely disabled.

 

While the program stops processing frames it does 400MB/s reads to the NAS and is using CUDA on the GPU (RTX 3090).

 

This is not fixed at all.

Known Participant
February 23, 2025

Ok, so it is now confirmed that Media Analysis/Visual search is the cause of the lag. I have few suggestions. Please allow to turn these completely off until performance issues are fully resolved (and those must be resolved, otherwise Premiere is useless) Now when you disable the Media Anaysis from the preferences the analysis of the media files is turned off, but timeline is still affected. Maybe add option to exclude sequences from the visual search and that way improve timeline performance? To me it seems that everytime you do a change in timeline it has to do a somekind of "indexing" to the whole timeline and that causes the lag. The more you have clips in the timeline the more there is lag.

Known Participant
February 21, 2025

It maybe a bit better, but there is still too much lag in timeline when doing changes in Lumetri for example. Version 25.1 performance should be the minimum target.

DaciaSaenz
Community Manager
Community Manager
February 21, 2025

Hi @Kirsi21888295ykon @Scott.C. & @V-Edit

 

We fixed performance issues with Media Analysis and would like to know if it improves the issues y'all are seeing with lags and delayed responsiveness to changes made to effects or adjustment layers. 
The fixes went in in Beta build 25.2 x 119 so please update to any build after that and let me know how things go. 

Thanks, 
Dacia 

 

- Dacia Saenz, AE & PR Engineering Teams
Known Participant
February 20, 2025

My guess is the new Visual search... if this was a bug you would think that it would be fixed by now. This is very basic function we are talking here; timeline performance. Some kind of comment from Adobe would be welcome.

Scott.C.Author
Inspiring
February 20, 2025

Still getting the issue when turning an adjustment layer on / off with A7s3 footage (even with prores proxies turned on).

 

There is some weird indexing or read of all the media that happens every time I try to make an adjustment that takes up to 10 seconds if not worse.