>>369499203
The model being pink could mean that the materials aren't properly assigned/fixed, so trying a new shader might be a good idea.
Well, you need to set the mouth stuff inside unity, when you click on a model in the scene, you'll scroll down on the right side (assuming you have a descriptor on it) and you can set the blendshape mouth, should be done automatically if you picked it up from somewhere.
Dynamics bones is a different can of worms, but relatively simple to fix yourself.

You might have better luck making a new scene and just importing the model and tinkering with it, the pre-made scene might be out of date or something.