Hello, @jason_solt . . . if he is having trouble walking on the surface you already have for him, something may be wrong with his legs and feet which is why I moved your new topic to this thread.
I would advise getting video of the issue with his walking and send the link as follows (if you still have your order number you can use that instead of the I.D.).
After LivingAI has diagnosed the issue, they will advise you on how to handle this as to whether or not he needs replaced or if they can fix it through calibration.