[Kanonen80]

I'll have to check with my co-simmer as he's the one who added the new league. Anything specific I should be asking him about how the league was added?

For what it's worth, I cleared the schedule and regenerated it to see if that would fix the issue but it didn't.

I also tried creating and deleting a second sub league before clearing and regenerating a schedule, but the issue still persists...

Update - here's how it was created:
"created a 2-team league (one subleague, so that the game wouldn't give any problems about "interleague") and deleted the 2 teams (along with all players), then simply moved the 6 " ... teams into it.