If you create a recurring appointment, delete one of its occurrences and export the calendar, when you import it back the deleted occurrence will be visible.

When ShowAllDayArea is false, and you add an appointment on a single day from 00:00 to 24:00, the appointment will appear twice.

When you add simple recurring appointment and edit some of its recurrences to create an exception, then open the series and remove the recurrence by clicking the Remove Recurrence button, the normal occurrences will disappear but the exceptions will still be present.

The first time you drag an appointment after RadScheduler has loaded in grouped DayView mode, if you drag that appointment fast, an exception will be thrown.

The event is not fired in case you select the previously selected appointment in a different resource.

The NewResourceId property of the event arguments on the AppointmentMoved/Moving events is always null. Also the events do not fire correctly the first time when an appointment is moved from one resource to another.

When you use the following code:

this.radScheduler1.GetTimelineView().GetScaling().DisplayedCellsCount = 12;
this.radScheduler2.GetTimelineView().GetScaling().DisplayedCellsCount = 30;  

both schedulers have cells count equal to 30.

Steps to reproduce:
1. Add appointment with start time 10:00AM and zero duration to MonthView.
2. Drag the appointment to other date.
3. The appointment will disappear.

If you try to rebind RadScheduler on the Appointments.CollectionChanged event or when the EditAppointmentDialog is closed, in some cases you will get an exception.

The scrollbar which scrolls trough the appointments on a single row in MonthView is not aligned properly.

The controls on the EditRecurrenceDialog are not arranged correctly when RightToLeft = Yes.

If the AllowDelete property of an appointment is set to false, the user is still able to delete appointments via the Delete key.

The CellClick event of RadScheduler is not fired when you click on a cell in MonthView.

A null reference exception is thrown in some cases when you try to drag and drop appointments between resources in grouped TimelineView.

When RadScheduler is in RightToLeft DayView or WeekView and you try to navigate from the last cell of a column to the next day or from the first cell of a column to the previous day using the Up/Down arrow keys, you will see that the navigation is not correct.

Exception is thrown by RadScheduler when you clear the Resources collection while in grouped MonthView.

When you use AppointmentFormatting event to add a single child element to an AppointmentElement and you change between views, the child element is not arranged correctly when you switch back to DayView or WeekView.

When TextWrap is true, the text of the appointments in month view and timeline view is displayed outside of the appointment area.

The appointment's data item is not changed when you drag and drop an appointment from one resource view of MonthView to another.

When you subscribe to the AppointmentMoved or AppointmentDropped event of RadScheduler, the DataItem property of the appointment in the event args is always null.