Within the hamburger menu of parameters the "Limit Settings for Blendshapes Weight" does nothing when you click on it.
There is normally a popup that says it can't be used, or the weight menu.
All other options within this menu can be used, like extended interpolation and synthesize corners. Doesn't work on other models that have weights built in already.
I tried restarting the pc, and reinstalling Live2D, but to no avail.
Thanks!