Global Admin can’t change sharing on Sharepoint online

We have 3 Global Admins and 2 of the 3 have this problem and the other does not.

When going into Sharepoint online and trying to change the Sharing permissions for the group, we get the following error:

URL: https://sitename-admin.sharepoint.com/_layouts/15/online/AdminHome.aspx#/sharing

Error on loading page: UntaggedErrorWithStatusCode403: No inner error provided

Error when attempting to change permissions with the slider: UntaggedErrorWithStatusCode403: No inner error provided Access denied. You do not have permission to perform this action or access this resource.

I can’t see any other issues like in my google searches.

Any ideas?