My guess is for some reason is GAC installed assemblies involved, perhaps by Visual Studio??
But please report a bug, and then we can try to investigate more around this. Please add as much information as possible in the bug, that can be very useful during investigation.
I will do that Johan, I think it was in the order i installed it, but I will try to reproduce it on a alloy-site
My site crashed after update to the latest version, read more here:
Can someone at EPiServer look in the package deployed yesterday if there are any wrong settings for EPiServer.Configuration?