Any time you create a new room, you must decide who should have access to it. Room's are only visible via the app, when access has been granted, via the interface.
How do I give access?
Using the interface, select staff > staff list > three grey dots (next to the staff who you wish to give access to) > manage room. Select the new room(s), to give the staff member access.
Repeat this step for all relevant staff.