I've ran into this a few times. You're going to need to go to paramiters and dig through the "currently used" morphs- one or more will either be jacked up to 100 or down to 0. Make sure to show hidden.
Last time it was a Mervin morph and before that a Hippoman morph. Good luck!
Here's where I was struggling- link
The one that was messing me up actually turned out to be 2 different character "fixes" for "shinbend" so, check there too.
@frank21 , no problem. I thought about adding that since I remembered passing it up a few times because those are sort of grey and dont stand out when you're scrolling through.