Premiere pro crushes when I try to flatten multicam or to export AAF

[Vlad_7612]

Hi there!

I have a bunch of multicam clips, and every time I try to flatten them, Premiere crashes.

The same thing happens when I try to export an AAF. If the sequence contains multicam audio/video, Premiere crashes.

It also crashes when I simplify the sequence and try to flatten the multicam.

This issue persists across all versions of Premiere Pro, from 2020 to 2025, whenever I attempt to flatten a multicam sequence.

Any ideas on how to fix this?

[MyerPj]

You're going to have to provided some additional information. Especially since this is not happenin to most of us. Here's what you need: 
https://community.adobe.com/t5/premiere-pro-discussions/faq-how-do-i-file-a-bug-report-or-write-a-fe...

[Vlad_7612]

Hi! 

Sorry the link you provided doesnt work. (Invalid Parameters Specified)

please let me know what info you want me to add?

[Vlad_7612]

So far I found one  solution . I  replace  every clip  from source. It is painful especiall when I need to replace audio clips too and it takes long time.   It is feature film and it is a lot of clips needs to be replaced audio and video

After replacing the  each clip from source monitor I can flatten it without crushing premiere.  AAF export work too 

 But it is one by one  and it is +3 weeks of my work. 

would love to hear   about possible solutions

[Vlad_7612]

Here is similar problem. 
https://www.reddit.com/r/premiere/comments/1as2cfm/help_working_with_multicam_sequences_created_the/

[IanB_360]

Hi @Vlad_7612 ,

Welcome to the Premiere Pro forums! We are glad to see you here. We need a few more details to try to help with the issue. Please see, How do I write a bug report

Thanks for submitting your bug report. I hope we can help you soon. Sorry for the frustration!

Thanks,

Ian

[MyerPj]

Sorry about that, and thanks for the bug report on my link! 🙂

I put the raw link on my post, but I see IanB has replied so use that.

[Vlad_7612]

• Issue -  Premiere crushes when I try to flatten multicam video or multicam audio. Same when I try to make aaf from seq where I used multicam.
•  
• Adobe Premiere Pro version number:  any version from 2020 till 2025 does the same
• Operating system - Windows 10 Version 10.0.19045 Build 19045
• System Type       x64-based PC
• System Info: CPU, GPU, RAM, HD:
• CPU       2x Intel(R) Xeon(R) CPU E5-2637 v4 @ 3.50GHz, 3501 Mhz, 4 Core(s), 8 Logical Processor(s)
• GPU (Intel-based Macs and PCs) NVIDIA Quadro K1200
• GPU driver (PC)  553.35-quadro-rtx-desktop-notebook-win10-win11-64bit-international-dch-whql
• RAM  128 GB
• Hard Drive  PLEXTOR 2
• Video format:  proxy
• Workflow details:  When I try to flatten MC  premiere crushes.
• Steps to reproduce - (Very important!)   I have a bunch of multicam clips, and every time I try to flatten them, Premiere crashes.
• The same thing happens when I try to export an AAF. If the sequence contains multicam audio/video, Premiere crashes.
• It also crashes when I simplify the sequence and try to flatten the multicam.
• This issue persists across all versions of Premiere Pro, from 2020 to 2025, whenever I attempt to flatten a multicam sequence.
•  I tied to import the footage to new seq, doesn’t help
• I tried to import seq in new project, doesn’t help
• I tried to open on various Premiere versions from 2020 till 2025 same result
• I tried  to open project and seq  on different PC – same result
• Expected result -  Suppose to flatten MC to  single clip. Also suppose to export AAF
• Actual result -   crushes premiere

[jamieclarke]

Hi @Vlad_7612 - Can you send the project to jamiec@adobe.com so that we can take a look.  

Have you tried to reset your settings?

[Vlad_7612]

Hi Jamie, 

I trashed preferences.   I am not sure  how to reset settings.

Thank you  I ll send the project!

[jamieclarke]

Hi @Vlad_7612 - You can find your settings at C:\Users\<username>\Documents\Adobe\Premiere Pro\<version>

Before deleting the <version> folder make a backup.  This will reset your settings.