Hi, the button to move to the "B team" will not show if the user has full capacity of players at their B team.
As long as you move 1 player from B team to the senior one the button to move to the B team from senior will become available again.
Hello @Roy Race 9
Can we ask how you were able to verify their rules?
When we tried to load your fmf file and go straight to Test Rules, the test fails as the UCL & UEL do not finish in time.