Hi HappyCamper,
Greetings from Syncfusion support.
We have validated your reported issue “Unrecognized child content inside component 'ScheduleView'” at our end. We suggest you to use the ScheduleViewTimeScale element inside a ChildContent element like below code to resolve your reported problem.
<ScheduleView Option="View.TimelineWorkWeek">
<EventTemplate>
<div>Subject: @((context as Appointment).Subject)</div>
<div>StartTime: @((context as Appointment).StartTime)</div>
<div>EndTime: @((context as Appointment).EndTime)</div>
</EventTemplate>
<ChildContent>
<ScheduleViewTimeScale Enable="true" Interval="60" SlotCount="1">
</ScheduleViewTimeScale>
</ChildContent>
</ScheduleView>
Please refer below common forum for more information.
Kindly try with the above solution and get back to us if you need any further assistance.
Regards,
Vinitha