Thank you for your interest in Syncfusion products.
We have already found and fixed the mentioned issue with Backward navigation of Schedule WorkWeekView in Xamarin Forms (iOS), issue occurs because of FirstDayOfWeek of Schedule is wrong in some of the Time Zone’s. This issue fix will be included in our upcoming Volume 3 main release which is expected to be available by this week August 2017. We appreciate your patience until then.
Sample level fix: By setting the required FirstDayOfWeek to the Schedule in the sample, this issue can be resolved.
Schedule.FirstDayOfWeek = 2; //Monday
Please let us know, if you have any query.
Subburaj Pandian V