Cannot modify User Roles after upgrade to v9.x.x-develop

ERPNext version v9.x.x-develop (638e3f9) (develop)
Frappe version v9.x.x-develop (5636385) (develop)
Roles for existing users and new users cannot be modified after upgrade from v8.
The checkbox have greyed out on firefox.

We have introduced new feature Role Profile.
Create Role Profile and the assign particular profile to the user.