Question about project board in team management

As per image shown i have 3 board, merchant & terminal app (v2) is migrated from old projects board. When trying to add it allow us to add the old board only all new board is not available. Wondering it’s bug or something did wrongly on my side?

if you feel that is a bug, you may want to try posting it at the Feedback Hub where the Prod Team can better track your request,