I tried so many times and so many different things and no matter what I did, it just would not let me set a new defense team.
Eventually I think I figured out how to do it. It doesn’t work every time, but it works often.
Don’t get me wrong–this issue is definitely bugged–this is just a workaround:
- Set your defense team
- Immediately close PvP
- Open Mail
Mail probably sends game state to the server and server state to the player.
In the past, playing PVP with a result was always enough to firmly set the Defenders, but something changed with the PC/Unity update and now that doesn’t work reliably.
It hasn’t worked for me AT ALL.