I have a 2017 Silverado 8 speed that the owner had it tuned and had a HP tcm unlock. He took it to the dealer to get it check and somehow they rest the engine and TCM to stock settings. After I did the tune on it the truck it?s throwing a check engine code for P0700 transmisi?n control system. Truck drives good shifts good it just have that check engine, and when I read the file or tcm it?s days I will lose any existing changes, and the tables on the TCM are stock again. Anyone have run into this problem?