Fatal Error: EXCEPTION_ACCESS_VIOLATION_READ / 0x1d60b525ee6 - 7405021343

Fatal Error: EXCEPTION_ACCESS_VIOLATION_READ / 0x1d60b525ee6 - 7405021343 : crashes/a3286eb9-b248-4198-1f35-d625f5b1644f

 I'm a Black Mesa: Blue Shift developer exploring the possibility of porting our game to Sbox. I've combined our game's sources and its dependencies into a single 155 gig project. Before the 1.0 release, it would open just fine minus 5-10 minutes loading time on average. Now it won't load at all, it crashes on "creating filesystem".