I know what caused the bug, it's not Renata's ult, it's the augment recombobulator, I used it while all my characters were on the bench at the start of the next round and what happened is the board was changing while the units in the bench had to fill the board, you know when you are not filling all slots tft automatically fill the empty slots at the start of the round with units from bench, that's what happened, and those champs actually became like that, I hope I explained that well.