patch notes says "Fixed: Potential memory allocation issue on 64-bit game executables" so seems fixed. ty! https://dev.arma3.com/post/spotrep-00079

64-bit broken for me aswell. I get into my server and after about 2 mins i crash to desktop. as what Flabby said 32-bit works. idk how long it will take to get fixed tho. hope its quick haha. also wanted to note that my OS is windows 8.1. but i heard its affecting windows 7- windows 10