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Floh75
Participant
October 17, 2018
Answered

Alpha Channels in ProRes4444 not working anymore

  • October 17, 2018
  • 10 replies
  • 14022 views

I tried to export videos with an alpha channel in After Effects CC 2019 but it doesn't work anymore like it did in CC 2018. The alpha channel is always sold e.g. white. I guess that's a bug ... hopefully not a feature.

Premiere Pro 2019 also has Problems with ProRes 4444 files containing an alpha channel. It reads every alpha as completely solid. A project I started in CC 2018 worked fine - all alpha channels worked the way they should - now in Premiere Pro 2019 all Alpha Channels in ProRes4444 don't work anymore.

I am working an Mac with the latest version of High Sierra.

Anyone out there with similar experiences?

Flo

    This topic has been closed for replies.

    10 replies

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    Nick Wiseman
    Participant
    July 18, 2019

    Just picking up on this I'm having a nightmare with the latest Premiere Pro 13.1.3 & After Effects 16.1.2. I've tried both ProRes 4444 and Animation millions+ Its also really intermittent. The only way I seem to be able to make this work is to render a tiff sequence and then re-render the sequence in an old After Effects. I'm really disappointed that this problem has not been fixed since Oct 2018!

    Andrew Yoole
    Andrew Yoole
    Inspiring
    July 18, 2019

    I haven't had the issue recur in many months, and use ProRes 4444 with alpha every day, so whatever you're experiencing may be specific to your setup.

    Please post all your system specs etc.

    N
    Nick Wiseman
    Participant
    July 19, 2019

    Hi Andrew

    Up to date Mac Pro 2013 running latest After effects & Premiere. Reinstalled both apps from fresh and removed cash and prefs. Attached is a grab showing the fringing. The lower third has transparency however once transparency is removed the strap keys fine.

    Tried both Pro Res 4444 and animation millions+.

    Cheers

    Nick

    E
    Edwin Video
    Participant
    January 6, 2019

    Hi:

    I have the same problem importing, Premiere Pro 2019 also has Problems with ProRes 4444 files containing an alpha channel. I found a video in YouTube #Viddyoze (and other MOV) Alpha Fix Adobe Import #Tutorial - YouTube that resolve my problem. In a lower third, overlays, etc., just changing the compression of the clip from Animation to PNG,

    Deep Million colors. Using the Juicer from Digital Juice and also you can do it with Quick Time Pro.

    Edwin

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    WDTechnicalDirector
    Known Participant
    November 13, 2018

    Same issues here. Terrible - complete workflow stoppage.

      D
      DWalla
      Known Participant
      November 13, 2018

      I can't believe it's been almost a month and they still haven't fixed this, this seems to be a low-priority for Adobe. It makes AE 2019 completely unusable in our studio. We just happened to be lucky and opened a project that had several ProRes 4444 files in it to attempt a test render. That's when we discovered the flaw. Thankfully we weren't into any new projects or it would have been a nightmare.

        K
        keianar11575610
        Participant
        March 19, 2019

        I stand corrected. It is definitely working correctly now. The problem was found in a layer in my composition. Sorry for the confusion.


        Is anyone else having issues with alpha channels from AE into Premiere again? It seems AE is still not recognizing alpha channels correctly. I am on 16.0.1.

          OussK
          Community Expert
          OussKCommunity ExpertCorrect answer
          Community Expert
          October 23, 2018

          You can vote for this issue here, and type your comment Bug report: After Effects CC 2019 can't read .mov files with alpha channel stored in ProRes 4444 or DNxHR/DNxHD – Adobe … 

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            Richard G Elen
            Participating Frequently
            October 22, 2018

            I have animated lower thirds in ProRes 4444 and these show up with black background in Premiere 2019. Going to 8bpc doesn't help, and neither does turning off maximum rendering depth. Changing the renderer also produces negative result.

            Adobe, please advise when a solution is available. Many thanks!

            --Richard E

              B
              bluecape
              Participant
              October 19, 2018

              Adobe Care provided this message.  I think the best "workaround" is as they suggest: go back a version until they find the bug.  I can't work in 8-bit at this time, so this is my only and best option.

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                Bas van Wijk
                Participant
                October 19, 2018

                A work around for now is setting your project dept to 8 bit per channel.

                AE doesn't see the alpha channel in 16bpc or 32bpc.

                  Andrew Yoole
                  Andrew Yoole
                  Inspiring
                  October 19, 2018

                  I can confirm I'm seeing this issue as well.  After Effects is not reading the alpha channel of Quicktime ProRes 4444 files.

                  Mac Pro (Late 2013)

                  64GB RAM

                  OS High Sierra 10.13.6

                  I'll post a bug report, and recommend other users do to.

                  B
                  bluecape
                  Participant
                  October 19, 2018

                  I'm also experiencing this same issue and it destroys my workflows.  I'll be sticking in 2018 for the foreseeable future until they fix this.

                  As to the above comment, there's not a "Render Max Depth" option in AE sequence or export settings.  I don't know where you're getting that from, except maybe from Media Encoder which doesn't exactly help us here.

                    R
                    REZI
                    Inspiring
                    October 18, 2018

                    if render max depth is selected in export settings and/or sequence settings. uncheck it and see if that works... Appears to be a glitch

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