The Vin voltage are fine, the Vout not, but that you already noticed.
As for the Vout ohm value, is indeed incorrect and could indeed be the U807 because it normally should deliver this voltage output when the circuit is 800ohms, but actually, you only know it for sure when you remove the U807 and to check if the ohm value goes up from the Vout, or just wait when you have the new one and see if it's helps.