So last game I was a doctor and there was another player named Dixi who was also a doctor (I can confirm he was not disguiser because I wanted for the end game role screen).
I healed Dixi and Dixi healed me on Night 2, the Werewolf attacker Dixi, I successfully healed him but he did not heal me. So the town lynched him for being a “fake doc” and cost us the game.
I wouldn’t have visited an obvious WW target if I knew of this bug.