Hi Subburaj Pandian V,
Sorry for late reply as I were on vacation few days back and also encountered issue where android emulator fail to work with Windows 10 update 1903 :(
For the Custom resource mapping issue, I tried to modify your attached project to imitate the project I am working on, as the page I use sfschedule I do not use MVVM pattern (no viewmodel).
I did the binding of the DataSource, ScheduleResources and SelectedResources using c# code inside OnAppearing() method of the SchedulerPage.xaml.cs, so the data get reloaded and refreshed to the schedule every time the page re-appear (maybe not efficient but just to test the code).
Method to reproduce the issue
Please note when the first time navigate to the SchedularPage, the toggling of the Resources View working fine, however when switch to the Home tab and switch back to the Schedule tab/SchedularPage again (while the OnAppearing be called second time and the binding codes are performed again), the toggling of the resources view now failed to work (however for some un-ticked/unchecked resource/employee may still work, but check it, go to home and back again, it may fail to work as well)
As I understand, the relationship between the appointment/event and the resources are bound by the "ResourceIdsMapping", which are employee IDs in this projects, so rebind the ScheduleResources and SelectedResources with new ObservableCollection (new instance of collection) second time should not make the resources view fail to work, am I right?
FYI, in my usage scenario, the datasource for the ScheduleResources may be retrieved from database and rebound to the sfschedule because new employees with new events maybe added by other users while current user is still using the app, so I may want to ensure the updates are shown to current user by using listener, in such case the resources view (employee) may be dynamic that explain why I feed ScheduleResources with new data when the page with sfschedule re-appear, and hence encounter this mentioned issue.
If my methodology of using the sfschedule component is not correct, or there is another alternative/work around, please kindly advice, thank you.