*EDIT*
I found it! It was friggin' Mervin. So, he'll be getting the boot. It was, of course, buried in the hidden sliders.
I just want to do a crouching pose without this happening. I tried bend control and looking for rogue morphs, but this is what it continues to do. Anyone know of a fix?
It seems to be doing for every crouching pose I tried, both for 8 and 8.1.
I guess I'll just have to keep poking around 😮💨 at least the last time something similar happened other people had the same problem and I just had to yeet a troublesome character from my library.
You checked for rogue morphs by ticking "show hidden properties" from the hamburger icon under preferences? Take a quick look for percentages above 100 or below 0.
Other than that try zeroing each morph. And like Anja said, check for morphs that you didn't dial in.
If you installed stuff recently, try uninstalling it one by one.
This deformation (at least for me) is typical of the auto pose enhancer. Sometimes it does a great work, sometime it creates exactly that deformation. You just need to tone down the % of the thigh area.
There's been a few times when posing a figure I've experienced a similar problem. I have this in my script menu, one click and you can check what morphs and values are dialled in. When I've experienced problems, there's been an excessive value in a parameter, as in -400 for example. I simply reset the value in Dial Control and the problem is solved.
This has been the quickest way I've found to solve any morph issues.