same thing here. mac pro 2013 hex core 32gb ram. it happens when the ksp app hits 3gb of ram usage according to activity monitor. time isnt exact but right before 3gb (2.95+) it gets those weird graphical glitches and then once its over 3 it crashes. player.log comes up with this: ================================================================= Got a SIGABRT while executing native code. This usually indicates a fatal error in the mono runtime or one of the native libraries used by your application. ================================================================= KSP(484,0xa03e61d4) malloc: *** error for object 0xed37a000: Can't deallocate_pages region KSP(484,0xa03e61d4) malloc: *** set a breakpoint in malloc_error_break to debug KSP(484,0xa03e61d4) malloc: *** error for object 0xc70db000: Can't deallocate_pages region KSP(484,0xa03e61d4) malloc: *** set a breakpoint in malloc_error_break to debug KSP(484,0xa03e61d4) malloc: *** error for object 0x12a33000: Can't deallocate_pages region KSP(484,0xa03e61d4) malloc: *** set a breakpoint in malloc_error_break to debug ipcserver restart: expected: 104, got: 0 KSP(484,0xa03e61d4) malloc: *** error for object 0xecd01000: Can't deallocate_pages region KSP(484,0xa03e61d4) malloc: *** set a breakpoint in malloc_error_break to debug also has logs under system and user diagnostics reports. hoping this gets fixed quicker than the last memory hang issue i reported that lasted for 4 patches. would be a shame to have to use windows for this. TLDR Reproducible when app hits 3gb ram usage. takes longer with lower settings.