Movie Render Queue stops writing frames after first shot when changing Sequencer FPS (UE 5.7)

Development Cinematics & Media
1

I’ve been stuck on this issue for days and can’t find a fix. I’ve used Unreal for cinematics since 5.4 and never ran into this before.

After a lot of debugging, I found that Movie Render Queue stops writing any frames after the first shot whenever I change the Sequencer’s framerate to anything other than 30 FPS. On 30 FPS it works normally. On 24 FPS, it only renders the first shot and then outputs nothing.

Also whenever I change the sequence FPS it displays this message after shutting down the render - “Not all frames were fully submitted by the time rendering was torn down! Frames will be missing from output.”

I’m on Unreal 5.7.

I already tried:
– Recreating the Master Level Sequence
– Recreating all sub-sequences
– Renaming everything
– Rebuilding MRQ presets
– Starting a clean preset and a clean sequence from scratch

Nothing changes, MRQ simply won’t render past shot 01 when framerate ≠ 30 FPS.

If anyone has seen this or knows what might be causing it, I’d really appreciate some help.

Thanks.

2

brand new project showcase, no way this is a bug on this scale? could someone test verify and test that as well?

3

I have the same issue but in my case it doesn’t seem to be related to the FPS setting. It happens no matter the fps target

4

I can repro this. I’ll JIRA this so the devs can take a look. Thanks for reporting it!

5

Ok, so the issue is if you have a 24fps sequence with a 30000 tick rate. You can change the tick rate to 24000 to match the fps. If you use MRG rather than MRQ it’ll just handle it in the BG. But we’ll chat with the Sequencer team to see if we can make this work a little better.

6

Yup, it’s correlated to sub samples it seems. Any more than one temporal sub sample will cause this, huge issue. leaving this here to hopefully help it get fixed