We're using Oracle calendar 9.0.4 and I have problems getting all of our calendars importing into ZCS from the exported ics files. We are running 5.0.4 and use icalmig (version 1.7) with METHOD:PUBLISH added after the VCALENDAR entry but some imports fail with an error similar to below

ERROR: service.FAILURE (system failure: POST failed, status=500 parse error Caught ParseException parsing calendar netfortunaical4jdataParserException Expected VCALENDAR read VEVENT at line 9878)