Mystery heroes character change

Hey, I haven’t played for a long time so I don’t know if this is supposed to happen, but I didn’t see any news about a change.

When I play mystery heroes and win in a “capture objective”, it changes my character for the second round, even when I don’t die. I feel like other players stay the same but mine changes?

That was implemented in a recent patch:

Mystery Heroes - On Control maps, heroes are now reset between rounds.