Worker Time shows as busy when they are available. "No Preference" worker is the only avai

I am having serious issues having my Workers Time show as available. If I try to see the [app_monthly_schedule} or the [app_schedule] for my workers they show as busy even when they are working in Working Hours and are assigned to those services. I have uninstalled all plugins and changed themes to the original wordpress themes but have not been lucky. I need help FAST.