Build 320 fails to start, Runtime error 217 at 00000000005381A3

Downloaded 320 and installed over my existing files and got
Runtime error 217 at 00000000005381A3
And thats it

And now it decides to run fine 8O

I got that but then ran it with sudo and started fine.

yeah I did it once with sudo and now it seems to be ok. Murphy is playing tricks again