If like me, you have come across error messages when trying to render out H.264 video from your Render Queue in After Effects, there is a solution…
Add your composition to the Render Queue as usual, and go to the Output Module: Lossless setting.
The Format defaults to QuickTime Movie, but click on the Format Options… button.
When the next panel opens, select H.264 as the compression type.
Ignore the warnings and render your video.Adobe, General Adobe, after effects, H.264 video, video