Recurrent events are not shown when using iCal URL parameter

Environment:

• XWiki 14.10.10, installed Full Calendar Macro 2.2.12 (reproducible also with 2.2.11)
• you'll also need an iCal URL from a calendar that has a recurrent event set with an end date in the future or no end date.

Note: I have reproduced the issue with 2 iCal URLs, one from Thunderbird Calendar and one from Google Calendar

Steps to reproduce:

• on a test page, add the Calendar macro
• add the iCal link in the parameter field "ICal - The URL to access a calendar in iCal format (.ics file). If this parameter is used, the JSON one should be empty"
• save and view the page to see the calendar loaded

Expected:

• when having a recurrent event, for example with the recurrence on each Tuesday until a certain date, you would see in the calendar on each Tuesday, the same event, at the set hour

What actually happens:

• you only see the event from the first day of the occurrence, no recurrent events.

Result from test with an iCal URL from a Google Calendar, where the first occurrence was set on 18th September, with recurrence on each Monday, no end date:

View from Google Calendar