Facility booking availability calendar “>” next arrow malfunction

On the “Facility bookings” page…
“Choose facility calendar to view” pull-down menu…

When I first access the “Facility bookings” page our room that is called ‘Expansion’ is displayed.
When I select a different facility from the pull-down menu and click “Select” the correct calendar is displayed (thanks again for the rapid repair of that last bug). But when I select the > to view the following month the next month is displayed but for the ‘Expansion’ instead of the facility I had been viewing. The same happens with the < (previous) month button.