@TeeRay
a couple of users have reported similar experiences.
The Developments Team highest Priorities are to Track down and correct Stability issues, and Usability Issues.
ps. I am not part of the Development team. I am one of the Forum Moderators
but I do relay information, or Tag Posts for the Team to look at.
This issue has already been Logged, and it is on the list of Items to be worked on.
Do you know what Bit Version you are using? 64bit or 32bit?
Do you know what Renderer you are using? CPU or GPU?
Does it happen with a Single Girl, or Only with Multiple Girls at the same time?
If you don't know that's ok.
but the more information that is provided, the more it is helpful.