You can see the finance window is covering up companions as you can only see two in the list, I had 3 and 3 family members, the list should go vertically so they can all be seen
OK so the finance window is obstructing the companions like it did with the smithing menu to the finance screen just needs to go behind the companions list
Forwarded to the QA team for further investigation. We will reach out again if we need more information. Thanks for reporting and sorry for any inconvenience!