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Premiere Pro 2020 - Stutter and Incorrect Clipping Render. Maybe VRF Related?

Explorer ,
Nov 10, 2019 Nov 10, 2019

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More comprehensive thread --> Adobe Support Community - iPhone 11 pro x xs 4k 60fps hvec 

 

Premiere Pro 2020, stuttering on iPhone clips (assume others but that is what I'm using).  Clips appear to overlap themselves inconsistantly.  After trimming a clip and moving the clip into the correct spot in the timeline, the clip that appears in the out render is not the same as the trimmed clip.  

 

If a clip goes A-B-C and I trim to just the C, after moving the clip shows as A or B.  As well the clip stutters heavily at times.  This appears inconsistant, as when I opened a screen recording app to capture the behavior it cleared.  Going through current forums this may be related to Variable Frame Rate.  However the prior posts indicate a sound de-sync.  In this case I have footage that jumps back to prior frames from within the same clip.

 

Feels like a compatibility issue or defect.  I am using the same source (iphone) and performing same actions in 2019 did not have this issue previously.  Post 2020 updates for encoder and an update (14 days ago) on 2019, I now have this issue on any files that appear to VRF (Variable Frame Rate)

 

I am trying to capture a video of it but not having success.

 

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Explorer ,
Nov 10, 2019 Nov 10, 2019

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Is it possible these are a problem with Variable Framerate? VRF? Anyone know how to confirm if a file is VRF?

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Community Expert ,
Nov 10, 2019 Nov 10, 2019

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"Anyone know how to confirm if a file is VRF?"

Please use the free MediaInfo and post a screenshot the properties of your media in tree view:

MediaInfo 

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Adobe Employee ,
Nov 10, 2019 Nov 10, 2019

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Hi Z Todd,

I just imported a 60fps HEVC file from my iPhone and it's totally normal. Are you on a PC or something? Have you tried transcoding the file? Is the file really, really long or something?

 

Thanks,
Kevin Monahan

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New Here ,
Dec 30, 2019 Dec 30, 2019

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BUMP

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Explorer ,
Dec 30, 2019 Dec 30, 2019

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Hey @kp_n7! I'd direct to you this thread; https://community.adobe.com/t5/premiere-pro/iphone-11-pro-x-xs-4k-60fps-hevc-will-not-work-in-adobe-...

 

Myself and a few others are still adding updates and comments in hope that Adobe actually pays attention...

 

The TLDR is; you're not alone, adobe does not see a 'defect' here because VRF is 'hard'.

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