Calendar updates sent from Outlook appear blank in thunderbird 60.8 + lightning 6.2
I have a weird situation where two PCs which are both - Running windows 7 - Are running Thunderbird 60.8 and Lightning 6.2 - Use the same shared CalDav calendar - Use the same imap mailbox
but which are seeing different results when viewing calendar updates.
The PCs are in a reception area and handle the same mailbox and calendar. Almost all calendar updates come from the same person, who runs MS Outlook connected to an o386 mailbox.
However just one of the two PCs exhibits a problem where the calendar updates are displayed as a blank mail message.
On the first reception PC:
- New calendar entries arrive in Thunderbird without issues
- Calendar updates (where a calendar entry has been edited and outlook sends the update to participants) are displayed correctly in thunderbird. - The user can accept the calendar updates and it will update the Lightning calendar.
On the second reception PC we have the problem:
- New calendar entries arrive in Thunderbird without issues - Calendar updates arrive as a blank email.
I have tried installing the "Show Outlook Appointments (vcal / ics)" addon but it had no effect. The blank messages still displayed as blank.
If I open the source of the message I can see that the calendar update is present in the underlying message.
So, everything seems to be identical between the two machines but one works and one doesn't.
Any suggestions?
Alla svar (3)
Try to turn on HTML view. In the message window: View - Message Body As - Original HTML
Apologies for not responding. This didn't fix the problem because the issue isn't that its displaying text. What is occuring is that Thunderbird will randomly display a blank window when calendar attachments are opened.
The same person can send another calendar attachment to the Thunderbird user and it will display just fine.
In one case we have two desktops in a reception area which both connect to the same mailbox and the same webdav calendar. Both run the same release of thunderbird, both have the same add-ins but on one they can view the received calendar appointment, on the other they cannot.
This is more of a guess, but may be worth a try.
Try to rebuild the index file of the troubled folder. Right-click the folder - Properties - Repair Folder