It doesn't seem to matter which export I choose: YouTube, draft, Twitter etc, but Pro crashes with "ArcGIS Pro has encountered a serious application error and is unable to continue."
It worked fine last week, but I applied an update to Pro and now it is broken.
How do I either roll back the update, or fix this?
I also had this problem using ArcGIS Pro 2.3.0 - couldn't export animation in any format without a crash. However by reducing the Frames Per Second from the default 24 to 10 I was able to export as mp4 in a variety of sizes with acceptable results.
Watching CPU usage during export I noted that it reached 100% - perhaps with faster CPUs we could export at higher frame rates. Or maybe it's a bug in the way ArcGIS Pro uses CPU when exporting animations.
animationexport
framerate