Turns out I made a mistake and Naturalis was broken for those on version 15 of the plugin, the free Hub version. Sorry, folks ?
It was a simple fix, but we all want bouncing titties from the start, right?
There was also a small issue with the glute physics toggle in the UI - resolved.
I've set the Naturalis dependency on a strict version (15) to prevent those on higher versions to have the problem in reverse.
Thank you for reporting this problem @KyloMan34
Please report any problems you may face so that I can fix the resources at fault.