Previously navigating to the group members tab of a group breaks other groups links (RoleMappings, Attributes etc.) because the groupId part of the url is missing.
One sees:
/auth/admin/master/console/#/realms/master/groups//role-mappings
Instead of:
/auth/admin/master/console/#/realms/master/groups/0f77aeed-7d16-4938-9fcc-c74b1125e5e0/role-mappings