Office 365, changed meeting time does not appear

[chrisbainbridge]

Using v4.0.0-beta4.
A scheduled meeting time was updated (1000->1100) by someone else. The new time appears in my Office365 web UI but Thunderbird still shows the old time. "Synchronize" button has no effect on this.

[advancingu]

By default there is a 15 minute delay between an event update and when it shows up in Thunderbird. Do events eventually synchronize for you at all?

[chrisbainbridge]

I would've expected updates to appear quicker than 15 minutes. What default delay does Outlook use?

I've tested creating an event and changing the time and date and it does appear in Thunderbird so the 15 minute delay could have been the issue.

[chrisbainbridge]

I noticed that for one particular recurring event the event data "Occurs every fourth Friday..." didn't match what was in the Outlook web ui. I cleared the offline cache and the event was reimported correctly. So there is some issue with syncing the offline cache for some particular events but I don't know exactly how to reproduce that case.

I also noticed that some events appear twice in Thunderbird. It looks like when this happens one event has plain text and the other is the same except the text contains some kind of links that look like https://meet.lync.com/.... I don't know what the difference is between these events and others that only appear once as expected.