iCalendar file returning Incorrect data type for operator or @Function: Time/Date expected on 'tmpUseLongDate' field

I am trying to process an icalendar (ical, .ics) file. When I open the .ics file it prompts me to select the files to import. Once imported, a broadcast message is delivered to my inbox. When I try to preview, or open the message I receive the following error: Field: ‘tmpUseLongDate’: Incorrect data type for operator of @Function: Time/date expected

I’m not sure how to get around this issue. I’m wondering if I can somehow set this field so it doesn’t flagged an error.

TIA,

Chris