Im not the top performing player of every match by a longshot, yet at the end of every game my character is the one that is highlighted with the "MVP" pose. Sometimes the MVP voiceline plays for my other teammate, probably the actual MVP, which is weird (Kazan animation playing over Atlus voiceline).
I couldn't replicate it but there was one time I was cracking up because I was show as the MVP of the enemy team after a match that was NOT close. I dont think this was the case when i played yesterday before the update.
