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Pascal Greuter
Participant
April 17, 2019
Question

AE CC 2019 (16.1.1) RAM Preview not Realtime

  • April 17, 2019
  • 3 replies
  • 6658 views

Hi,

Yesterday, I installed AE CC 2019 (16.1.1) on my Mac (OS X High Sierre 10.13.2). When I make a RAM preview and the Composition Window is scaled to 12.5% or 25% the playback is not realtime. As soon as I switch to 50% or 100%, the playback is fine. I have already trashed my preferences but that didn't help.

In CC 2018, everything is working fine.

Is it the same with you guys?

    This topic has been closed for replies.

    3 replies

    C
    Cliffordli
    Participating Frequently
    October 8, 2019

    I have same issues on my PC as well.
    In cc 2018, playback speed is realtime when the green bar filled.
    But in cc 2019 it can't playack in realtime, especially when I have a lot of stuffs in my project (many composition and footage)

      S
      Sarcasm94
      Participant
      April 1, 2020

      Same here,bro.

      Have you solved it？

      C
      Cliffordli
      Participating Frequently
      April 1, 2020

      Not yet...

      And recently I can't get back to my studio...can't reach my pc to test yet....

      D
      danni_r7
      Inspiring
      July 23, 2019

      Hi! I had a similar problem: preview was lagging on the project I was currently working on, although it was fine when I opened another project. It turns out the problem was that I had multiple comps and/or footage on the timeline that had different frame rates. As soon as I conformed all footage and comps to the same frame rate as the main comp, the preview worked just fine.

        H
        hqhempen
        Known Participant
        August 14, 2019

        Hi Danni, Not sure if you're still having issues (likely will be), but I did just spend about an hour troubleshooting some non-realtime playback issues of my own - wanted to ask if you're using any imported *.c4d files? I had a project that magically stop doing realtime and had to do my typical tedious troublehsooting of deleting layers, section by section, then layer by layer, to find the culprit. Even thought the c4d layer was disabled, it still broke realtime playback, but instantly started working again once I got rid of it. Moral of story for you isn't so much "do you have a literal c4d file" as the magic solution to your problems, but maybe try deleting layers one at a time till normal playback resumes. I've seen this behavior before with rogue layers in After Effects - the audio engine in AE is particularly touchy with each new update, and at times does NOT want to play nice with files it had no issue with a few months ago. Even if you're not dependent on audio, files can jack with the audio engine and cause this mysterious playback issue Adobe staff can never figure out. Good luck and thanks, -H

          D
          danni_r7
          Inspiring
          August 16, 2019

          Hi H.! Yes, I noticed this too on a couple of projects.. when a project gets too large, with a lot of assets and comps, sometimes RAM preview is laggy. It works fine again after I reduce the project. Didn't troubleshoot though, to see what exactly is  causing this. But I don't think it's an effect or specific assets.. One project had 20 comps that were almost identical, with just the text being different. RAM preview was lagging for the active comp.. When I deleted all the other comps (just the comps, no assets were removed) from the project panel, then RAM preview worked fine again.

            Rameez_Khan
            Rameez_Khan
            Legend
            May 15, 2019

            Hi Pascal Greuter,

            What is your computer configuration?

            Have you tried purging memory and disk cache?

            Thanks,

            Rameez

            N
            natevplas
            Known Participant
            July 2, 2019

            I'm having a similar problem.  Mine, however, won't work on Half or Full resolution, no matter what zoom level (100%, 50%).  It is a 1920 x 1080 comp with some Photoshop layers.  I'm running Windows 10 64bit with 128 GB of RAM, Intel i7-6900K CPU @ 3.2 GHz

            Oh, and yes, I've purged all memory and disc cache.

            Rameez_Khan
            Rameez_Khan
            Legend
            July 3, 2019

            Hi natevplas,

            Is Cache Before Playback checked under the Preview window?

            Do you see a green or blue render bar on the timeline?

            Does it playback smoothly if you set a smaller Region of Interest?

            Thanks,

            Rameez

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