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Andre.Cianfa
New Participant
December 23, 2020
Answered

Render and Replace. "Transcode Failure: Unable to Match Video Aspect"

  • December 23, 2020
  • 3 replies
  • 8525 views

Hi everyone, I'm working on a sequence that contains a few clips horizontally and vertically flipped and played in reverse. Considering that when I play the sequence it lags a lot, I tried to use the "Render and Replace" function on the clips concerned, but every time Adobe Premiere gives me this error: "Transcode Failure: Unable to Match Video Aspect". It gives the same error even when I try to apply "Render and Replace" to a clip just imported in the timeline and without any effect. Does anyone have an idea of what might be causing the error?
Thank you very much. Bye.

    Correct answer Jeff Bellune

    Instead of Render and Replace, go to Sequence>Render In to Out.

    Render and Replace actually replaces your source footage with the rendered version, and that rendered version is then re-rendered during Export.

    Render In to Out just renders preview files for use in the timeline to make your editing go faster, which is what I think you want.

    3 replies

    M
    Community Expert
    Michael GrenadierCommunity Expert
    Community Expert
    March 21, 2025

    but in some circumstances, render and replace is the way to go.  It locks in the "render" so that you won't lose the render if you accidentally change any parameters for the clips and if I remember correctly, you can move the clip around, etc.  So it might make sense to investigate this further to see why this is not working.   

      M
      Manushk
      New Participant
      May 6, 2025

      yes, we actually need to fix render and replace, cause most of the time when i do replace with AE and try to do Roto its gives me the whole footage, so i usually render and replace it and take that particualar footage into AE, 

      is there any ways to fix that?

      M
      Mr29189296ao69
      New Participant
      March 21, 2025

      Thanks, just what i was looking for too. watched a video on youtube that said render and replace but not nearly as good as this one!

      Jeff Bellune
      Jeff BelluneCorrect answer
      Legend
      December 23, 2020

      Instead of Render and Replace, go to Sequence>Render In to Out.

      Render and Replace actually replaces your source footage with the rendered version, and that rendered version is then re-rendered during Export.

      Render In to Out just renders preview files for use in the timeline to make your editing go faster, which is what I think you want.

        A
        Andre.CianfaAuthor
        New Participant
        December 23, 2020

        Thank you very much!! Yes, the function of "Render In to Out" is really what I was looking for. 

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