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iCloud calendar issues with TB 78.10.2

  • 3 replies
  • 1 has this problem
  • 37 views
  • Last reply by sfhowes

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Since latest upgrade I have experienced instability with access to iCloud calendar. After updating any calendar item the calendar displays a warning badge and hovering over badge displays [paraphrasing] "calendar momentarily unavailable."

Restarting TB alleviates display of badge yet any attempt to update results in failure message and re-appearance of warning badge.

Creating new calendar item will create a new item (able to be viewed via separate device) yet new item does not appear in calendar view until TB is restarted.

Win10 (64-bit) Version 20H2 (OS Build 19042.985) TB Version 78.10.2 (32-bit)

TIA! John

All Replies (3)

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How is the calendar synced, i.e. how is it set up in TB? One method is with TbSync/Provider for CalDAV & CardDAV.

https://addons.thunderbird.net/en-us/thunderbird/addon/tbsync/

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I am using the native (to TB 78.10.2) CalDAV API to connect to my iCloud calendar. This method has worked flawlessly (mostly) until recently prompting research which is how I learned that 78.10.1 was released in mid-May (around time issues began).

Thanks for reply.

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I don't know if TB updates have affected CalDAV with iCloud, but I would try the add-on method. If you don't want to modify your current profile, you could try it in a separate profile created from Help/Troubleshooting, about:profiles.