After Effects won't render

[eliascraft]

After Effects is not rendering my comps!
I press "render" and nothing changes!
Dropbox - Screenshot 2015-03-01 12.46.35.png

my set up
Dropbox - Screenshot 2015-03-01 12.46.57.png

ae
Dropbox - Screenshot 2015-03-01 12.47.21.png

[Szalam]

We will need more info to help you: FAQ: What information should I provide?

[OnlyLevelOne · Accepted solution]

I was having the exact same problem.
I found it was a problem with how After Effects handles Multiprocessing.
Something must have happened in a recent update as this problem came on suddenly.
I figured out a work around until they patch this.

- Go to your Preferences in After Effects.
- In the Memory & Multiprocessing category there is a section on After Effects Multiprocessing.
- Uncheck "Render Multiple Frames Simultaneously"

- That's it

Unfortunately, until there is an official fix for this After Effects won't be able to take advantage of Multiprocessing.

I know this is almost a month late, but I thought you or someone who stumbles on this might like somewhat of an answer.

[Maazer]

WORKED FOR ME!

Thank you!

[Siabmvm]

omg thank you, you help a lot

[MagnusC]

Ran into this problem today, using After Effects 2025 (25.1.0 Build 68) and unchecking «Render Multiple Frames Simultaneously» fixed it, almost 10 years later.