Availability report with service time showing incorrect information

I think I already have it set up like that:

  1. created a Time Period in “Wato / Time Periods”
  2. created a “Service period for services” rule for the folder the affected hosts are in (main directory), and reference the timeperiod in “SERVICE PERIOD FOR SERVICES”

It shows up when i click on a service in the “Service custom attributes” field.

In the “Availability / Configure details for the report” section when clicking on a service, I seem to have no other option other then “Base report only on service time”. Nothing specific to the item I created, so I assume it should work with the service times I created.