BMD Desktop Video causing Premiere Pro to Freeze Playback

[Jeff-LCBC Video]

In my facility we have a number of PCs that are running Premiere 2024 and Black Magic desktop 12.7.1. We have been encountering a bug that only happens when transmit is enabled. With transmit enabled, Premiere will randomly, yet consistently, stop playing video in the program monitor, view and external display.  We can move clips around, drag the play head, but no video will update. The only way to get video to play again is to reboot Premiere.

Premiere Pro 24.0.0

BMD Desktop Video 12.7.1

Microsoft Windows 11 Pro

HP Z4 G4 Workstation

i9-10900X CPU @ 3.70GHz, 3696 Mhz, 10 Core(s)

Installed Physical Memory (RAM) 128 GB

NVIDIA GeForce RTX 3080 Ti

Jeffrey Di Lullo

Lead Content Creator

LCBC C​hurch

[Bruce Bullis]

Specifically, what BMD devices are you using, with that 12.7.1 driver?

[Jeff-LCBC Video]

Decklink 4k SDI 

Ultras Studio

Decklink 8K Pro

[Jeff-LCBC Video]

We don't have this issue when using Pr 23.0.0

[Bruce Bullis]

Confirming: You're seeing the same/similar behavior, across numerous BMD devices, all using BMD 12.7.1 drivers, and all using PPro 24.0, on Win11?

[Jeff-LCBC Video]

Correct and on Windows 10 as well.

[default2zoqqaub9re7]

Not seeing this so far with an ultra studio 4k mini.  @Jeff-LCBC Video, can you please post screen shots of your playback prefs and audio hardware prefs?  Thanks!

[Jeff-LCBC Video]

  

[Gigowatt Film]

Same here with a similart build. No problem in 23.5 but started to be unusable with 23.6, then 24.

Premiere Pro 24.0.0

BMD Desktop Video 12.7.1

Microsoft Windows 10 Pro

Asus proart Z790

i9-13900K

Installed Physical Memory (RAM) 192 GB

NVIDIA GeForce RTX 4070

Decklink extreme

[Christian.Z]

maybe it's an issue on BM side?

[Gigowatt Film]

It may, though unlikely. Resolve works great with the decklink. Adobe 23.5 worked great with the decklink.

[Bruce Bullis]

Hi Gigowatt, 

On the systems that experience these issues, are you using normal (local) OS user accounts, or Active Directory? 

Also, you're right; if the only difference between 'no issue' and 'issues' is upgrading from PPro 23.5 to 23.6, then it's unlikely to be a BMD issue (though such things have happened). 

Our team is already testing a project from Jeffrey (thanks!), and have so far no been able to reproduce any issue. 

While the GPU driver shouldn't impact playback as described, I note that you're both using NVidia GeForce devices; are your drivers current? 

[Gigowatt Film]

Hi Bruce,

Thank you for your message.

I use a local account (standalone PC).

I tried a number of Nvidia versions (only studio ones). I'm currently running 537.85.

I tried quite a few things : Fresh install (win10), bmd drivers, nvidia drivers.

Tried to copy/paste the project into a new 2024 project. All to no avail.

edit : I started a brand new project. Put just 2 assets in - 1 video track dnxhr mxf , 1 audio track 5.1 pcm. I just had the same problem scrubbing the one track ! So I think it is not project dependant or codec dependant (I usually run h264 or prores).

[Paul224437706nuc]

Having the same issues. I'm going back to 23.5 and see if I can edit without if freezing constantly. Disabling mercury transmit, is the only thing that would fix it, but then I don't have SDI output for my broadcast monitor.

I have an AMD Radeon RX 6650 XT with the pro version driver.

AMD Ryzen 5600X 6-croe processor and 32gb of ram. Windows 10

I hope you can figure something out.

Thanks

[Bruce Bullis]

> I hope you can figure something out.

We've been trying, but so far we've been able to reproduce the behavior. 

Multiple testers have used a variety of BMD devices (always current drivers) on a variety of Win10 and Win11 systems; no luck. 

Jeff says that, regardless of audio output settings, his systems reliably encounter the behavior with ~5 minutes of editing. 

If anyone on the thread can provide us with step-by-step instructions which reliably generate the behavior, please let us know! 

Note: "Just edit for a while and it'll happen" has proven fruitless; more specifics needed. 🙂 

We'll keep pursuing the issue.

[Paul224437706nuc]

I have the decklink mini monitor 4k 12.7.1

I've install 23.5 loading up a project, it is rebuilding because I deleted all the cashe files.

[Jeff-LCBC Video]

Bruce, I find a reliable way to trigger the issue is moving quickly between the ripple/role or the trim tool and hitting the space bar to preview. Unfortuantly, this doesn't trigger it everytime, but I know if I'm deliberate in my key strokes it will take longer for the issue to crop up, but it will always, 100% of the time, happen if I have transmit turned on. 

Also, I'm running 546.01 Nvidia Studio driver and BMD 12.7.1 (thought the issue started under earlier versions of the drivers.)

When we have the issue appear, are there any log files that we can save and send to you? 

[Juliette27338507uqgd]

Hi,

We have the same problem, with approximativly the same configuration.

[Bruce Bullis]

Good testing tips, thanks Jeff! 

No, there are no relevant log files.

[Paul224437706nuc]

After switching back to 23.5 it has been completley stable no freezing no issues. 

For me it would happen if I would start to jump around the timeline too quickly, or trimming then hitting the space bar quickly. Dragging with control key pressed.

[Jeff-LCBC Video]

@Bruce Bullis Today I was editing for about 20 minutes today and I triggered the bug. The way in which it triggered was via playing through a timeline at high speed. I used the keyboard to do my playback speed change (tapping L). 

I also changed my audio hardware output to be my BMD decklink 8k.

[Bruce Bullis]

Thanks for the further testing details! 

We think we were able to replicate the behavior yesterday; QE are working with developers, to isolate/confirm.

[Gigowatt Film]

Hi Bruce,

Any news ?

The sound change on my machine is not working (I'm in ASIO), but disabling mercury transmit stops the problem. It is a bad solution though.

[Bruce Bullis]

Nothing firm to report; developers are working with QE, narrowing down the steps to reproduce.

[Sort Of...Films]

In case helpful, I wanted to let you all know that there's already another thread about this same issue....

https://community.adobe.com/t5/premiere-pro-bugs/premiere-pro-24-continual-freezing-requiring-restar...

[default2zoqqaub9re7]

Hey folks,  just wanted to let you know where we are with this.  We have two different repro's in house at the moment.  On older hardware, we can repro pretty much as described above.  On newer hardware we can still get a freeze, but it is recoverable, and restarting PPro is not required.  In both cases it appears to have something to do with the timming of starting playback after an edit is made as Jeff described.  So far I can't repro this if I take a beat before I trigger playback.  Not a very good workaround I know, but I am curious if others experiece the same result.  We are currently having the engineers looking at this and will update when we find out more, but any new data will of course be helpful.