"Waiting UI" game crash upon loading up

Every time I load the game up I get a grey screen saying "Waiting UI" and 5 seconds later it cuts off and tells me to do a bug report, I have reinstalled the game and deleted all files within the game to see if this would fix the process but it doesn't. If I download the older beta version of the game it works but that's the outdated version of the game so I reinstalled the new version of the game after deleting the content from the old version and I still get the same issue.

Is this a...

"Waiting UI" game crash upon loading up