The game pulls you out of nowhere by wanting to enter the map

[juampaa]

I played the factory map many times without problems, but when mount akiyama was unlocked I crashed the game when I wanted to enter, I repaired the steam files and tried again 3 more times and I got out, the factory works almost every time (except once when I get out too) well and fluid, I even put the game in minimum graphics but still, why is it (every time it takes me out I can't enter for a while and I lose everything in my inventory)? my pc: Gtx 750 2g, atlhon penom ii 4x 3.0, 12 gigs of ddr3 ram