Hi...
AccuRig is working fine so unfortunately the issue is likely a local system issue.
Does your Mac have a dedicated graphic card (Nvidia, AMD etc.) or does it use integrated Intel graphics. If the latter then that may be the issue.
If you do have an Nvidia or AMD graphic card, please make sure it is using the latest Windows graphics drivers. You can download these from the Nvidia or AMD websites.
However, if the problem continues, please feel free to contact our Technical Support department as they may be able to help you overcome the crashing issues.
https://www.reallusion.com/CustomerSupport/UserEx/QForm.html
Peter
Forum Administrator
www.reallusion.com