Trying to do an offseason league with the current rosters. I select fantasy draft as part of the league settings. When the league starts, the fantasy draft button doesn't show up and when I click advance , nothing happens. The game is stuck.

Yep, I am seeing the same with offseason league. Does seem to work with fictional league.

I probably have to disable that option with the offseason start because everything is prepped in that fashion for it to be in that stage of the offseason and not at the beginning like the fantasy draft scenario would be