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mvallier
Participating Frequently
February 20, 2019
Answered

Footage Glitch in both After Effects and Premiere

  • February 20, 2019
  • 6 replies
  • 90967 views

I work for a video game developer and I am always having problems with footage glitching in both After Effects and Premiere. The source footage does not glitch at all.

In After Effects, some clips will glitch when I export or just pre-render.

In Premiere, it can sometimes glitches in the preview window and on the timeline.

In both cases, the workaround has been to replace footage with a different clip temporarily and the replace it again with the proper footage. This either fixes the issue or glitches then happen again in DIFFERENT spots. This is annoying but it works... BUT, now I have a project which has 12 clips on the same screen. 2-3 of them will glitch, so I do my workaround, but then others will then glitch and this keeps happening.

I uploaded a video on YouTube as an example. The following monsters glitch:

- Top Left (Towards the end of the video)
- Bottom Left (Shortly after appearing)

- 2nd row, 3rd monster in (Shortly after appearing)

Any suggestions?

Thanks!

    Correct answer Liu En-Yu

    !!!"this is a decoder problem"!!!

    Oh my god, you really save me.

    I got a lot of short clips (H.264 .mp4) using AE effect. The glicthes often start at the same point of the sequence and beyond the point, but considered unrelated to how you editing. And the glitches will jump around when tying out different encoding setting or tweaking.

    Working around diffrent methods that is all really about encoding/export, there was no result. Finally, this is really the solution with proper reason.

     

    In Premiere Pro v14.5:

    Preference>Media>uncheck hardware acceleration.

    After turn off Pr and clean up Cache file in manual restart Pr for program to run new cache file

     

    In AE v16.13:

    File>Project Settings>use Mecury Software Only

    Edit>Purge>All Memory and Disk Cache

    AE automatically run new Cache files

     

    problem solved

    Thank you again!!!

     

     

     

    6 replies

    G
    Grig-B
    Participating Frequently
    February 13, 2022

    I'm on the M1 MacBook Pro, and had the same issues.

     

    Solution: Use Media Encoder to convert to another format first.

      J
      Just_a_phase
      Participant
      March 1, 2023

      YES changing the decoding didnt solve my problem, but converting the format to H.264 in ME worked

      thank u so much! 


      G
      gotnocluetbh
      Participant
      May 17, 2021

      I don't know if anyone needs this, but I've just found a solution to a similar problem that I had so I want to share it here.
      The problem was that videos recorded through the QuickTime player on the new macbook air m1 glitched in AE and the green screen\flicker also popped up for some reason. I didn't have such a problem with videos recorded on my old mac mini (I transfered some clips from the old mac mini to the macbook - it opened in AE and worked just fine). 

      My solution: open the video file in QuickTime again, then click File -> Export as -> 1080p. Also when exporting the setting 'Smaller file size (HEVC)' should be selected. After that it should open and work in AE  without any problem!

        G
        gotnocluetbh
        Participant
        May 17, 2021

        upd. Instead of HEVC it's better to select H.264. The HEVC still was causing some glitches on some of the clips, H.264 - was not.

          V
          vini15C3
          Participant
          April 29, 2021

          It works ! Thanks a lot !

           

          E
          Emilio Javier
          Participating Frequently
          June 3, 2020

          This exact problem has haunted me literally for YEARS. I finally found the problem. It's not an Encoding problem, but a Decoding one.
          It seems that Adobe After Effects (and also Premiere and Adobe Media Encoder) don't decode H264 videos properly when using Hardware Accelerated decoder, with certain computers (mine is an Acer gamer laptop with a 1050Ti Geforce card)
          So this is a decoder problem that reflects in playback AND render/export.
          The only solution I found so far is going into Preferences -> Media in Premiere (or Preferences -> Import in After Effects) and unchecking "Enable hardware accelerated [Encoding and] Decoding". (This only affects H264/HVEC codec playback and export, not effects rendering or other GPU processing)
          After that, restart the application and CLEAN THE CACHE.
          H264 clips will take a little more time to be decoded while playback and render, but the glitches should be gone.

          If you need speed in a project that has many footage clips (like yours) and this solution makes everything too slow, an alternative workaround is to previously reencode the h264 clips in Adobe Media Encoder and choose a non H264 codec, such as Quicktime with Apple Prores 422. The files will be larger but the edition work will be snappy.

            L
            Liu En-YuCorrect answer
            Participant
            October 30, 2020

            !!!"this is a decoder problem"!!!

            Oh my god, you really save me.

            I got a lot of short clips (H.264 .mp4) using AE effect. The glicthes often start at the same point of the sequence and beyond the point, but considered unrelated to how you editing. And the glitches will jump around when tying out different encoding setting or tweaking.

            Working around diffrent methods that is all really about encoding/export, there was no result. Finally, this is really the solution with proper reason.

             

            In Premiere Pro v14.5:

            Preference>Media>uncheck hardware acceleration.

            After turn off Pr and clean up Cache file in manual restart Pr for program to run new cache file

             

            In AE v16.13:

            File>Project Settings>use Mecury Software Only

            Edit>Purge>All Memory and Disk Cache

            AE automatically run new Cache files

             

            problem solved

            Thank you again!!!

             

             

             

              A
              AlvaroDeCastro
              Participant
              March 31, 2021

              It works like a charm, thanks! ❤️

              Szalam
              Community Expert
              SzalamCommunity Expert
              Community Expert
              February 20, 2019

              Where did these clips come from? What format/codec/etc.?
              What exact version number of AE/Premiere Pro are you using?

              M
              mvallierAuthor
              Participating Frequently
              February 21, 2019

              Szalam
              Here are the following details:

              AE Version 16.0.1
              Premiere Version 13.0

              I use Bandicam to record our game footage. AVI format with Xvid, 30fps at either full HD or sometimes 4k (issue happens in both HD and 4k)

              Szalam
              Community Expert
              SzalamCommunity Expert
              Community Expert
              February 21, 2019

              I wonder if it's having an issue with the codec. Have you tried seeing if other options in Bandicam work better?

              You also might try transcoding the videos with Adobe Media Encoder into something like ProRes, Cineform, or DNxHR.

              dj.summitt
              dj.summitt
              Inspiring
              February 20, 2019

              My first expectation is that it's a cache issue.
              Choose Edit > Purge > All Memory & Disk Cache to purge the contents of all RAM caches (like the existing All Memory command) and the contents of the disk cache (like the existing Empty Disk Cache button in the Media & Disk Cache preferences).

                M
                mvallierAuthor
                Participating Frequently
                February 21, 2019

                Thank you dj.summitt, I've done the "Media & Disk Cashe in the preferences before but never the Purge. This worked for now, but I have the feeling this may not be the core issue. I could of course be wrong and I hope I am. In Premiere there is a "Media Cashe" in the preferences, but I cannot find an equivalent to the Edit > Purge option like in AE.

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