I think he’s playing some game we aren’t privy to. I foldYou may also have a bad coupler that an inspection, rather than a replacement, will not depict.
Randy, you are in a stasis. Your purchasing dealer had been rather worthless. You may have grounds for a refund by law.
Your tractor may be behaving intermittently but for all intents and purposes, that’s insufficient for tractor use.
You need to do something effective for either the tractor or yourself.