I have a REPO which has a global administrative group with Admin privileges.
When I add ANY group with a long name to the "groups" section of the "access management" console (no matter what privileges), the permissions selection buttons disappear, leaving read-accessibility as the only visible option even though the group retains prior permissions. (picture attached)
If the group has read-only access, the READ lozenge is solid blue. If the group has other access, the READ lozenge is blue outline. In either case, it's the only lozenge that is visible or clickable.