Originally Posted by SkulFuk

Actually the problem is with Vegas, Sony were incredibly bad at making sure their stuff worked on newer OS'. Think along the lines of forced upgrades. -_-'

OFC the fact that you're using a Sony version shows it's out dated, they sold Vegas to Magix a while back. 13 and older is basically trashed now, no support, no more updates, no working on newer OS'.
Means buying again, and no doubt it'll be unstable again since it's still running on the leaning tower of .net runtimes.

If you don't want to throw money at it or turn your machine into a virus factory with dodgy versions (which most do with Vegas Pro) you could grab DaVinci Resolve, Blackmagic let you have the standard version for free, it's not like you need studio features for game videos.

Hell even Adobe's unstable crap is better than Vegas these days. Shame, years ago it was pretty great.