Unable to export an mp4 file from Adobe Podcast Studio

I am unable to export the mp4 of my latest episode in 1080 with captions. After many attempts and selecting different options a 720p version without captions did successfully download.

But the 1080p versions, or any versions with captions, leaves me with a generic error message:  “Something went wrong downloading the project. Please try again.”

My latest podcast was 1h40 and the mp3 file was edited (briefly), exported successfully and has been published.

I would also like to publish to YouTube. Suggestions?

I’m using Chrome Version 146.0.7680.81 (Official Build) (arm64)
Macbook Pro M1 13.3.1 (a) (22E772610a)