Calendar is showing multiple copies for annual events on same day

Peter Lairo

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Dec 19, 2012, 8:06:45 AM12/19/12

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I subscribe to several iCal calendars that show repeating events (e.g.
[1]). For some reason, many (all?) of them are showing multiple copies
of the same event (e.g. Christmas School Vacation is shown 11 times on
22.12.2012).

A related issue seems to be that when I page to the Next Week (in Week
View), I only see the copies of these events and not all my other events
(incl. non-repeating events and events from my CalDAV calendars).

Is there a bug I could follow until this is fixed?

[1] http://www.ifeiertage.de/he-zs.ics
--
Regards,
Peter Lairo

Bugs I think are important:
https://bugzilla.mozilla.org/show_bug.cgi?id=250539
https://bugzilla.mozilla.org/show_bug.cgi?id=391057
https://bugzilla.mozilla.org/show_bug.cgi?id=436259
https://bugzilla.mozilla.org/show_bug.cgi?id=446444

Islam: http://www.jihadwatch.org/islam101/
Israel: http://www.jewishvirtuallibrary.org/jsource/myths2/
Church of the Flying Spaghetti Monster: http://www.venganza.org/
Anthropogenic Global Warming skepsis: http://tinyurl.com/AGW-Skepsis

STF

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Dec 19, 2012, 11:14:03 AM12/19/12

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Is your problem transitional? I frequently saw a similar problem: I'd
get multiple copies of events (any event, not only annual events) just
after I subscribed to a (Google) calendar. But as soon as I update an
event or when I restart Thunderbird, the problem goes away.

I have filed a bug of it, in case somebody is free to debug it:
https://bugzilla.mozilla.org/show_bug.cgi?id=802577

Peter Lairo

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Dec 19, 2012, 12:37:18 PM12/19/12

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Restarting Thunderbird does not fix the problem.

BTW: I think the replies in these newsgroups are supposed to be
bottom-posted or interspersed (but not top-posted).

Peter Lairo

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Dec 24, 2012, 8:46:01 AM12/24/12

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On Mi. 19.12.2012 14:06, Peter Lairo wrote:
> I subscribe to several iCal calendars that show repeating events (e.g.
> [1]). For some reason, many (all?) of them are showing multiple copies
> of the same event (e.g. Christmas School Vacation is shown 11 times on
> 22.12.2012).
>
> A related issue seems to be that when I page to the Next Week (in Week
> View), I only see the copies of these events and not all my other events
> (incl. non-repeating events and events from my CalDAV calendars).
>
> Is there a bug I could follow until this is fixed?
>
> [1] http://www.ifeiertage.de/he-zs.ics

I've just tried fixing this by deleting an iCal calendar (US Holidays).
Strangely, the duplicate entries for that calendar did *not* go away. I
then recreated the calendar and the duplicate entries *are* still there. :-(

What is wrong with Lightning[1]?

[1]
http://ftp.mozilla.org/pub/mozilla.org/calendar/lightning/nightly/latest-comm-central/

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101
Thunderbird/20.0a1

Peter Lairo

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Jan 14, 2013, 2:55:17 AM1/14/13

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On Mi. 19.12.2012 14:06, Peter Lairo wrote:

> I subscribe to several iCal calendars that show repeating events (e.g.
> [1]). For some reason, many (all?) of them are showing multiple copies
> of the same event (e.g. Christmas School Vacation is shown 11 times on
> 22.12.2012).
>
> A related issue seems to be that when I page to the Next Week (in Week
> View), I only see the copies of these events and not all my other events
> (incl. non-repeating events and events from my CalDAV calendars).
>
> Is there a bug I could follow until this is fixed?
>
> [1] http://www.ifeiertage.de/he-zs.ics

Well, with the current nightly builds, this problem has vanished. :-)

I wished someone could have responded to this thread last month, so I
would have known it was a bug and not something in my setup. It would
have saved me a lot of time.