Can't export a file

[danielrcollins1]

As per another report, I'm trying to run Calendar Import-Export on a Moto G6 Play, running Android 9, without any Google account attached. Under Settings > Export, I have all permissive settings and MS extensions checked to on. Currently I have selected the local calendar under local_account, which shows 9 events. The owner field is blank.

When I export this calendar, it says, "Wrote 9 events to Local_calendar.ics". But when I check this file in the file system it is always 0 bytes in size (and confirmed empty with Notepad++). On the other hand, Calendar Import-Export seems able to import this same file and so duplicate all the events.

On the other-other hand, if I turn off Settings > Export > Permissive export, then on exporting I get the error: "Property [ORGANIZER] must be specified once", and again a 0-byte ICS file is created. Any thoughts?