Slow thumbnail generation in Premiere Pro

Of course the problem still persist cause adobe isnt really working on building a thumbnail cache @Kevin-Monahan 

but instead it regenerates them every single time. its wokring needlessly too hard. You can just generate them once and then use the cache to load fast. iits been like that as long as i can remember and i dont understand whats stopping them from implementing that

and I think the most annoying part is when I close premiere I will then have to sit there to regenerate the thumbs in all my bins so I can see them in gallery mode once again...am I alone in this?

Is it ok to link a video here showing what we are all talking about. This is a bin of only 163 items. The video has not been slowed down in anyway.

Thumbnail population 

@Itam Show in Task Manager who is responsible for hardware decoding of thumbnail generation.

I can confirm that the issue is not fixed sitting here in September of 2024 with the most recent build of 25.6.1

When I have a bin of say 200 clips put into gallery mode and when I scroll down to view those clips I would hope that after the bin sits there for say 5 minutes the thumbs would be already generated for me. This is not the case, they only populate when I scroll the bin and then have to wait seconds for each few rows to populate before I can scroll some more to then wait again. Incredibly frustrating.

As a wedding videographer, we are typically handling 100-150 clips and 200-300gb in size, depending on formats and lengths, all stored locally when editing on a project. I have my programs installed on my C drive and Cache / temps going to my D drive for storage reasons. Im not sure if that contributes to the issue (along with pre-rendered areas of the timeline going back to yellow on start up) but I figured I'd throw that out there since some have asked about working on an external drive which I'm not but I do have those things split in hard drive destinations. 

That will be good news if the issue is resolved in new builds. For stability reasons, I work out of a build a few iterations back unless I am working on a joint project with another company and they happen to be updated. Hence my appreciation for the access to other versions in CC. During a slow part in the year, I'll take a peak at some of the newest builds and see how it handles and eventually stick with one. 

Thanks Kevin

I've found that the issue often happens when there are more thumbnails than can fit on the screen. I'd expect in that case that premiere would continue to process the thumbnails that are below the frame of the UI, but what more often happens is that it will create thumbnails for the items that are currently displayed, then I could go take a tea break, come back, and scroll down and THEN it will process the items once they're on the screen. When the bins are small it's fairly imperceptable, but when you get into the hundreds, it can definitely take some time.

Hi @Kevin-Monahan,

Thanks for replying. Ofcourse it depends on the project, but I estimate the average is between 100 and 200 clips.
With bigger projects I often make multiple bins to sort the footage. But still I think the average per bin is between 100 and 200 clips.

I'm wondering. How many clips are in these bins, @Itam, @Gabrielle36420925e6da, @BrianDavison, @cendrick1, @dominicr92369200? A developer might be able to shed light on load times for icon modes and how they might look into speeding up the process.

I commented on this issue with the dev team. They appreciate the feedback.

Thanks,
Kevin

Agreed. Still a problem in August 2024. No new builds have helped this issue.