I have a recurring event with exceptions (see end of message). The exceptions are picked up by Lightning (Thunderbird) and Infcloud (web-based calendar application). They are not picked up by DAVdroid. Namely, the two Calendar apps I tried (aCalendar+ and Stock Android) ignore the exceptions.

I am using DAVdroid 0.8.4.1 from the play store on a Samsung Galaxy S3 Mini Duos with Android 5.1.1 (Cyanogenmod 12.1).

I have read the Recurring Events FAQ, and based on the mention

Exceptions of recurring events are supported since DAVdroid 0.7.3.

and the fact that the event seems relatively simple, I would have thought this would be supported. (Clearly not.) Is this unsupported or a bug. In case of the former, what is problematic about this VEVENT?

BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Europe/Brussels
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:19700329T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:19701025T030000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CREATED:20151012T085039Z
LAST-MODIFIED:20151012T134529Z
DTSTAMP:20151012T134529Z
UID:06acb64a-61d4-416e-8c81-e3b4d64cb79f
SUMMARY:Meeting with somebody
RRULE:FREQ=WEEKLY;UNTIL=20151117T130000Z
EXDATE:20151008T100000Z
EXDATE:20151008T120000Z
EXDATE:20151015T120000Z
EXDATE:20151022T120000Z
DTSTART;TZID=Europe/Brussels:20150917T140000
DTEND;TZID=Europe/Brussels:20150917T163000
SEQUENCE:3
X-MOZ-GENERATION:3
END:VEVENT
END:VCALENDAR