Has anyone else seen this?
It happened while I was trying to save the project
I will raise a ticket with support to see whats going on
Version is 2.0.2
While it wasn't in 2.0.2, I did see similar behavior once in 1.9.0 and as far as I could trace it to it was the bad luck of the auto-saving timer kicking off when I was trying to manually save the project. This caused the auto-save to have a lock on the files while the manual save was trying to access them. That was my best guess at least.