P: Moving items in timeline sluggish in 25.4, behavior is new and repeatable

[BrianLevin]

I have been holding back for a while sticking with a very stable 25.2. I've logged a handful of bugs and issues since updating to 25.4, but this one is probably the big one because I needed more hands on time to really identify if it was just circumstantial or a real problem.

Plain and simple, something is wrong with the timeline in 25.4. To be more clear, when you select lots of items in the timeline and try to move them, the movement is sluggish. This was not the case in 25.2 and I suspect it has something to do with the way that the new 25.4 timeline tries to keep everything moving smoothly when trimming (which is nice by the way).

At first I was testing this on a sequence that had a ton of single word captions, which would have been a bit sluggish to select all track forward and move even in 25.2. It was worse in 25.4, noticeably so, but I didn't think too much of it.

I've since moved onto a project with far fewer cuts and segments on my timeline and no captions, and I'm still seeing the same behavior when selecting all clips forward. To test this, I tried selecting everything in my timeline from the front, and in the attached video you can clearly see the timeline objects moving choppy behind my mouse and then having a delay when landing, compared to what it should be like when I try the same operation at the back of my timeline.

There's also a reddit thread I posted on the other day where another user was asking about this and several commenters jumped in with their shared experience on 25.4, so I know this is something new to 25.4.

To be fair, I know if I have a massive timeline with tons of single caption segments it might not be reasonable to expect selecting and moving everything at once to be smooth, but I'm working on a single video track multicam podcast right now with four tracks of audio, there's no reason I should be seeing the kind of slow down that I'm currently experiencing.

Occurs on both of my workstations, both OSX 13.7.8:

Macbook Pro M1 Max

64gb RAM

Mac Studio M1 Ultra

128gb RAM

[video]

Video link:

https://www.dropbox.com/scl/fi/2vzmycslin027k8jmpbse/250907_sluggish-timeline.mov?rlkey=8dz9ntk2s9y2...

[stasym]

In Premiere Pro 25.4 the Track Select Forward Tool makes the timeline sluggish and movement of the clips really slow. I attach two different screenshots from the same machine and project (25.3 and 25.4).

This really needs to be fixed, since then I have to revert back to 25.3.

iMac Pro

Processor: 3,18 GHz 32-Threads - Intel i9 14900K

Graphics: AMD Radeon RX 6800 XT 16 GB

Memory: 128 GB 2133 MHz DDR4

MacOS: 13.6.3 (22G436)

[Ann Bens]

Yes I have seen the same sluggish behavior on windows.

The beta is fine.

[ryancaldwell]

Same exact issue and it's really hurting my workflow. I can't even select big sections of the timeline to move without issue. 

[stasym]

The problem still remains at 25.4.1 update.

[mwuahahaha]

I also have this problem. It's terrible.

[jessd50499862]

same here!

can't edit like this

how can they release updates like this!

in the last version I couldn't work with mts-files

now this

[jessd50499862]

The problem remains with 25.4.1 update and with Beta ...

Are we the only ones having this issue?

Anyone any idea how to fix this?

greetings

[cendrick1]

I'm having the same issue and I'm finding with hundreds of clips across an hour or so of a show that some of the clips are being duplicated randomly and causing a huge mess. Only way to move them is to select them from a backup timeline and put into place.

[jessd50499862]

Have any of you found a solution yet?

or why this is happening?

I find it almost impossible to work like this.

could it be a bug?

I'm working on Imac 2017 4,2 GHz-Quad Core Intel Corde i7 (Ventura 13.7.8)

I've never, in 5 or more years, had this issue before ...

can someone at Adobe please take notice?

[Zingperformance]

Yeah same issue here. Working on the timeline is terrible. So slow. It appears that with every new release they introduce a new bug.

[Rach McIntire]

Hi @BrianLevin, 

I can see the behavior from your video, and I found the same Reddit thread you were talking about.   I'll look into this more and file a bug if needed.  Thanks for another detailed bug report.

[Rach McIntire]

Yes, this is a bug.  It has been filed.  Hopefully, we can find a solution soon.

[BrianLevin]

Appreciate it, thanks!

[stasym]

Still same sluggish experience of moving things on timeline at 25.5!

[MJedit]

I'm having the same problem, joining the thread so I get an update.

[The Tale Tinkerer]

Same issue here. Incredibly time-consuming to edit this way. Joining the threads for updates.

[Jazzborn]

same with 25.5 (windows)