I'm having this problem with just one node of league 6. Once I've beaten the combatant, my game freezes on the victory screen and I'm forced to close the game. This particular node is on the top left side.
I've reset the league once already because the same problem occured on the same node prior to resetting.
I am desperate because this bug chews my available combats as well and I just can't progress.
Thank you for taking the time to read.