Kim

What version are you running? There is an issue (#1269) with 3.X version syncing after making changes to recurring events and it was never fixed so I was worried about upgrading to a version that would make matters worse. The issue with recurring events you're sharing is almost worse because I'll be working off my phone that has incorrect meeting date/time info which can be disastrous (show up to kid's football game after it's over???)

This is what I saw in the log file that I think is relevant. 2021-03-31 12:35:12 DBG Adding new Google appointment 1 of 5 by unique properties: Cancelled - 2/15/2021 5:00:00 PM 2021-03-31 12:35:12 DBG Adding new Google appointment 2 of 5 by unique properties: Cancelled - 2/1/2021 5:00:00 PM 2021-03-31 12:35:12 DBG Adding new Google appointment 3 of 5 by unique properties: Cancelled - 2/15/2021 5:00:00 PM 2021-03-31 12:35:12 DBG Adding new Google appointment 4 of 5 by unique properties: Cancelled...

I believe this is my problem as well. It started after a recent update. I had deleted an event from a recurring series, eventually on both Outlook and Google, and I still get the conflict "both have changed" message . I tried keeping the Outlook, then the Google entry, then skipping, etc. but the conflict comes up with every sync even though there are no events to sync. In the summary it's even saying it synced them. I even reinstated the Outlook entry from my trash but it still got the conflict...