I've been trying to export my video for YouTube. Before I had issues, I was able to export 10seconds of my video, which I did to test my export settings. But now when I try to export the whole video, Media Encoder crashes after preparing the audio clips and the video is being exported as an m4v.md0 file + the audio as aac. I was able to export just audio, without any issues.
This is the first time exporting a video on my new mac, but I'm using the same settings as I did on my PC.