When entering normal battle mode and I get matched up against opponent who is playing in the heroic adventure, my current party is selected as opposed to 4 random heroes from my roster. No big deal, but this seems to be an error.
I had this same problem - two of the characters are not even on my battle roster.
Hey Mo_Young, could I ask you to reach out to our team at email@example.com with your support key? Our team would be happy to take a closer look at this on their end.
If you could include the approximate date and time for when the issue occurred, it’d really help our team out.