Hi @ijcarson & @iqbalmauludy,
Seems like this is an inherent behavior atm to prevent other issues. It’s not possible to delete all classes or to delete the last class.
Hopefully, this will be tackled when we get to work on the Global Class Manager: Roadmap – Bricks
As a workaround for now, you can delete all classes, then add a placeholder class, and then you can hit save & refresh.
I hope this helps and sorry for any inconvenience!
Best regards,
Charaf