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A
Alek_V
Inspiring
November 3, 2020
Answered

Error with a proxy: "Cached Preview needs 2 or more frames to playback."

  • November 3, 2020
  • 3 replies
  • 1751 views

I have what I think is a pretty straightforward test project. I have two comps with one nested in the other. The containing comp has footage under the graphics precomp. The precomp is 3D layer.

I am reading the User Guide cover-to-cover, and on page 95 I'm learning about pre-rendering comps. The guide says, "An alternative to replacing the composition with the movie is to use the rendered movie as a proxy for the nested composition."

 

I'm curious about the alternative, and there are no links or instructions. I found the section on proxies (starting on pg 126), and I learned how to make one. So I performed these steps...

1) I right-clicked on the "graphics" comp in the Composition panel and selected Create Proxy > Movie...

2) This put the file in the Render Queue and I clicked "Render."

 

Now this happens when I try to play the video from the containing comp with the proxy enabled...

What is happening, and how do I fix this?

 

My system today:

Mac Pro 3.33GHz 12-core (mid-2010)

32 GB RAM

Sapphire Pulse Radeon 580 RX (8 GB VRAM)

macOS Mojave 10.14.5

This topic has been closed for replies.
Correct answer Alek_V

Version 17.5.1 Build 47 fixes the bug!

3 replies

A
Alek_VAuthorCorrect answer
Inspiring
November 18, 2020

Version 17.5.1 Build 47 fixes the bug!

Marcus Iahn KRX
Marcus Iahn KRX
Participating Frequently
February 17, 2021

Hello.

I am uing the latest version, 17.7.0 Build 45 and this bug is still here.

It's so boring...

Warren Heaton
Community Expert
Warren HeatonCommunity Expert
Community Expert
November 3, 2020

Which version of After Effects are you running?

 

Does the 2-frame error message go away if the Proxy is disabled?

 

Have you tried to purge the RAM cache from the Edit pull down menu?

A
Alek_VAuthor
Inspiring
November 3, 2020

Hi Warren. Thanks for your help!

 

I'm running the latest version, which is v17.5.0.

 

Yes, the error message goes away when I disable the proxy.

 

I didn't try purging the RAM cache from the Edit menu. Just tried it. I get the "2-frame" error unless I either disable the proxy or switch to a quarter resolution Preview.

Warren Heaton
Community Expert
Warren HeatonCommunity Expert
Community Expert
November 4, 2020

(That was supposed to say, "... thanks for pointing it out.")


I'd say use the workaround, but keep this support thread open.  Someone may come along with "I clicked _____ and it worked again!"  Or, something like that.

 

Another thing to try is moving your Preferences file to the desktop.  If you haven't done this before, use the "Reveal Preferences in Finder" button in the General Preferences to go to that file.  Close After Effects, then move the file to the Desktop.  Launch AE and then try enabling the Proxy again.

 

 

 

-Warren

    OussK
    Community Expert
    OussKCommunity Expert
    Community Expert
    November 3, 2020

    Creating proxy must not affect the render preview, anyway try to show us your render preview settings, also try to reduce the quality of your preview to half or quarter and see if this can help you 

    A
    Alek_VAuthor
    Inspiring
    November 3, 2020

    OussK, thank you for your reply.

     

    Isn't the purpose of a proxy to make render previews faster?

     

    As you suggested, I changed the preview quality to half and quarter. With half, I still get the "Cached Preview needs 2 or more frames to playback" error message, but with quarter the preview works. Why would reducing the preview quality eliminate this particular error message?

     

    Here are my preview settings (let me know if you meant something else)...

     

     

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