Roles are not populating correctly

anyone else having these issues?

Description: Roles were lost in Training instance over the weekend. When an Admin User attempts to add Admin roles to a user or add a user to a group with Admin role assigned, the roles/membership are not populating on the user's record.

Steps to reproduce:
In Training instance, add Admin User to user Akkarin Chirachaturaphak (KAC0026). Select save, user does not gain Admin roles