When adding a recurring event to the scheduler, all work fines, but the call to server to save event, the recurrenceRule always has a trailing semicolon
eg
RecurrenceRule: "FREQ-DAILY@INTERVAL-1@"`
-- note I replaced the semicolons with @ , and the equals signs with hypen
as your editor doesn't let me add semicolons or equal signs!!!
no mention of an ending semicolon in RFC5545, semicolon used for keyvalue pair delimiters only, and all examples they provide do not end in semicolon
This causes an issue when I am using a server side library to parse the incoming RRULE. Returning that it is invalid due to the trailing semicolon
additionally according to the spec, should also start with RRULE: but that more be a question of it being used
in the context of a VEVENT