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mikedski
mikedski
Participant
October 2, 2019
Question

Missing Frames after Export in Premiere Pro 2019

  • October 2, 2019
  • 3 replies
  • 4647 views

Every video we export in our office seems to have completely random missing frames after export is completed. Resulting in black frames scattered throughout a film...anything from a 15s teaser to a 20-30minute film.

I've tired a number of different options

- export direct from Premiere in h.264 & ProRes

- export via encoder in h.264 & ProRes

 

Is anyone else having such issues?

This topic has been closed for replies.

3 replies

B
beatrizg93013177
Participant
March 1, 2020

I don't know if there's anyone still looking for answers about this, but I want to share what worked for me:
After a while experiencing this problem I'VE SOLVED THIS FOREVER: you have to select your render in Premiere or Encoder as OpenCL. This one won't never provide you random black frames!

    S
    Seva5F84
    Participant
    May 15, 2023

    Hey, actually i have the same black frames poping up once in a while and i'm rendering in OpenCL and i still have this problem.

    M
    Michael Grenadier
    Legend
    October 3, 2019

    and the source and timeline framerates?  If framerates don't match might be a source of the problem...

    mikedski
    mikedskiAuthor
    Participant
    October 3, 2019
    Yup, everything matches...I added more above, I sent the message too early. Sorry.
    M
    Michael Grenadier
    Legend
    October 3, 2019

    Please tell us the source and sequence's codec and frame rate.  Might be a clue there.   You might try setting your render quality to match your sequence settings and use previews when you export.  

     

    The only time I've seen this is when I've applied optical flow speed changes to a clip that has black immediately next to the last frame used.  The simplest fix in this case was to extend the next shot by one frame to cover the black frame...

    mikedski
    mikedskiAuthor
    Participant
    October 3, 2019

    The missing frames are in the middle of a single take. No cuts/transitions to throw it off.

    Source footage can be a combination of .R3d/mp4/mts/mov all at 23.976.

     

    Sequence settings -

    - 23.976 timebase

    - square pixel/progressive scan

    - preview format - I-frame only MPEG

    - codec - MPEG I-frame

     

    Export settings

    h.264/mov @ 23.976

    hardware encoding

    bitrate settings - VBR1/2 pass or CBR

    Interpolation - have tried both 'frame sampling' & 'optical flow'

     

    As a note, it only does this when exporting from native footage. Once the shots have passed through Davinci via .xml and exported as ProRes4444. Once they're brought back into Premiere to add the final sound mix and exported, its clean. 

     

    Really strange.

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