Movie Render Queue hangs part way thru render sequence

Using 4.27 y render out several shots (680 frames) from Movie Render Queue.
Part way thru the rendering completely stops and either hangs the editor or the entire desktop forcing a reboot of my machine.
I have Task Manager open to monitor vram usage but that doesn’t seem to be the issue.

How can I troubleshoot this?
When rendering hangs in this fashion is there an error log somewhere?