1) Started a DXP patched with de-46
2) Created 20 site roles (eg. role1, role2 etc.) apart from the Site Administrator, Site Content Reviewer, Site Owner
3) Created a user (user1)
4) Navigated to Site > Members > Site Memberships
5) Changed to List view
6) Added user as Site Member
7) Assigned 4 roles for the user (3 from the second page, 1 from the first page)
: roles correctly appeared under 'Site Roles and Teams'
8) Navigated to Assign Roles - and added 1 extra role from the first page
expected result: all 5 roles are shown
actual result: Only those roles were assigned which were listed on the first page (role1, role2).