locks

I have returned to this game after a year or two and it was all good at start.

But then... I tried to change my party/team setup..
For some reason, each morty that was in my team was "locked" but I could still upgrade, level up, change where it's position and remove it from the party.

But for some reason, I couldn't add any locked mortys to my party.
I looked at unlocked mortys and found out there was an unlock button next the the abouts of the morty, but for the locked mortys, there wasn't.

Any help?

All you have to do to remove the locks is to remove them from your fight pit team to do that go to fight pit change your mortys then go to a match complete the match and your mortys should be unlocked.

Well if that was the only way, then I can't put my best mortys in my team since the event is over and it still shows me them locked, any other ways?