Currently RadScheduler for WinForms has a bit different behavior when it comes to recurrence appointments. It doesn't hide the major appointment, and when you create one recurrence appointment the major appointment will be shown and the recurrence will start from the recurrence start date. This is the reason that we save it in the recurrence rule. This behavior is a bit odd, and we will change it to coincide with the web scheduler (and Outlook as well). This will be done for the upcoming release.
The workaround is to save the recurrence rule from the winforms scheduler and after that modify it in the web scheduler to fit your needs.
If you have additional questions feel free to ask.
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