I would make sure you have nothing outstanding. Make sure your payment method is set to cash. If finance, it probably expired and that will push you back. SA can change this for one once you get a VIN. Also, if you had a trade in offer, it may have also expired. Set to no trade in. They will contact you about 30 days out and ask you about a trade in anyway.
If neither of those, call Tesla and ask them to validate your profile and make sure all is ok. Then ask them why the long EDD. EDD is based on your profile completion date, not your order date.