1. Your armature needs to be named "Armature"
2. Your main mesh with lip sync visemes needs to be named "Body"
3. If you want eye rotation, you need to have your eye bones registered as humanoid bones in the rig configure menu. Depending on your eye setup they may over-rotate in some animations
4. You need to have blendshapes named properly
   1. [Web Archive link] just in case the original ever gets taken down
   2. You absolutely don't need to include all of these, use your own discretion as to what is right for you and your model!
   3. Avoid including “まばたき” if you already have a blendshape named “Blink” as they both get animated!