Same problem here. Till now I have verified the files multiple times and have installed the beta new after removing all leftover files. Now after I learned that I have to changed the language settings in Windows10 from german to english the game starts at least for a short time. But some seconds into the intro-video win taskmanager shows “not responding” and the conansandbox.exe has occupied the whole RAM. I only have 16GB but the Beta worked fine with it in the past.
I hope someone has an other idea on how to fix this issue or the devs have an now update in the next time.