Tell MonRig which side is the front
A new Orientation step on the Setup tab turns your model so it faces the way every rig expects.
Models arrive facing every which way: exported facing sideways, lying on their back, or with Y and Z swapped. MonRig used to assume the file knew best.
Now the Setup tab starts with Orientation: six small pictures of your model from every side. Click the one where the creature looks at you, then the one where it stands upright. MonRig turns the mesh to match (your bones and numbers stay put), and the turn is saved with the rig, so the bake and the delivered FBX face the same way the editor showed you.