Comp: 1.mp4

In Adobe Media Encoder , go to Preferences > Media and turn off Hardware Encoding/Decoding to force software rendering.

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

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)? In Adobe Media Encoder , go to Preferences