iCal Feed Issue

iCal Feed Issue

Okay, this works with Google Calendars:


This doesn't work with Google Calendars:

My definition proves that PMC_Name field is there:

calendar  PMC_Open_House_Calendar
{
    displayname = "PMC - Calendar"
    show  all  rows  from  PM_Schedule 
    (
        PMC_Name as "PMC Name"
        Open_House as "Open House"
        Open_House_Time_End as "Open House - Time End"
        Open_House_Time_Begin as "Open House - Time Begin"
        PMC_Name.ClientSelect as "Select Client"
        Specific_Content as "Specific Content"
    )
    options
    (
        show calendar based on Open_House
    )
}

So what am I doing wrong? Any help and advice appreciated.

R