An error occurred while saving the commentTyrone Steele commented
Set your Media Export to Software, not Hardware GPU (within the Media Export dialogue)
You may or may choose 1 pass or 2 passes. I've only tested single pass.
And increase your Windows Paging file to at least 55GB -
Restart the machine
I was able to export an entire 6K 30 minute film.
And PROBLEMS ARE SOLVED.