Pre-compose all layers so only one layer exists in the timeline.
Avoid direct H.264 exports from After Effects. Instead, render to a high-quality format (like Apple ProRes or DNxHD) and convert to .mp4 later. Comp 1.mp4
Knowing these details will help me provide a specific solution to get your render finished. H.264 exporting error - Adobe Community Pre-compose all layers so only one layer exists
In Adobe Media Encoder , go to Preferences > Media and turn off Hardware Encoding/Decoding to force software rendering. Knowing these details will help me provide a
Troubleshoot by removing third-party effects, particularly if the render crashes. Clear Cache: Clear the After Effects Media Cache . If your "Comp 1.mp4" is failing, can you tell me: Which error code are you seeing (e.g., -1609629695)?
Based on the search results, the file is a commonly failed output file associated with Adobe After Effects and Media Encoder . The "write-up" for this scenario involves troubleshooting a frequent H.264 rendering failure. Common Scenarios for "Comp 1.mp4" Errors: