I can't say that I'm having the exact same problems, seeing as how I don't know how in depth my problem may or may not be, but I am randomly freezing/crashing. I thought maybe it was my graphics card or something but I've played Beta 3 and 4 with zero problems. When early access began is when the problems began. During early access I managed to get a few hours of gameplay in before I was kicked and ever since I haven't been able to stay in the game for more than a few minutes before it kicks me and gives me error 2002 or 90000. I am using an AMD Radeon graphics that's above the minimum requirements but below the recommended and when I'm in game it runs nicely until stuff freezes.