Not sure if this is a bug, but figured it warranted some feedback.
In the First Avenger versus event I had selected an opponent whose team was Cap, R&G, and Punisher. Hit the first “Fight” button to get to the team selection screen. One of my characters needed a couple of minutes to fully heal, so I waited. While waiting I got a “defeated” notice–fair enough. Once my character was fully healed I hit the second “Fight” button to begin the match. The team that appeared was Cap, SW, and Deadpool.
Best I can figure is that the retaliation node for the defeat overwrote the node that I had originally selected. I never imagined that a node could be overwritten after you had selected it and begun the process to select the team.