1921192 - (At least) German Holiday Calendar offered from thunderbird.net does not work/display correctly

Status: RESOLVED DUPLICATE of bug 1921465

(Calendar :: General, defect)

Description

[Joe Breuer]

Attachment: GermanHolidays.ics

Steps to reproduce:

Subscribed to the German Holiday calendar, at
https://www.thunderbird.net/media/caldata/autogen/GermanHolidays.ics

Actual results:

There's only one entry shown in 2024, on October 5th, "Tag der Deutschen Tafel". Other Holidays only show in 2026.

Expected results:

All Holidays in Germany starting at least with 2024 should be shown.

When I manually download the ICS file, it does look valid at first glance and does contain eg the "Tag der Deutschen Einheit" on October 3rd. However, displaying this same file in TB's "Open from file..." => "Calendar..." => <choosing that downloaded ICS>, also only shows the one entry in 2024 and others in 2026.

Is there an (easy?) way to trace ICS parse errors and/or such? How would I figure out if this is an issue with the ICS backend, or the Calendar frontend?

For good measure, I'll include the GermanHolidays.ics as it arrives on my system.

Comment 1

[Markus]

See also https://bugzilla.mozilla.org/show_bug.cgi?id=1922772