A note on compatibility with BusyCal: They have previous versions available for download which helps for those running older macOS. For example, BusyCal 2023.1.2 from February 1, 2023, supports macOS 10.13 and 10.14, whereas the current version requires 10.15+.
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Hello,
Since updating macOS Big Sur to Ventura v13.6.1 in a familyās 13" Intel 2020 MacBook Pro about a month ago and synchronizing two folksā iPhones (13 & 11 Pro Maxās v16.7.2) in two different macOS accounts, I found issues with Calendar events in both macOS Ventura v13.6.1 and iOS v16.7.x:
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MacOSā Calendar shows missing new, deleted, and updated events from iPhones. How do I get all iPhoneās calendar events to show up in macOSā Calendar? Is there a way to force it? I know it can go the other way, but iPhones will lose their newer data. :( And yes, I checked to see the calendars are selected (all enabled).
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After the first synchronization for each iPhone after macOS upgrade, both iPhones and macOSā Calendars showed many duplicate events.
Users donāt use iCloud for Calendar and others, except Find My, and any other non-Apple third party services and apps for calendars. All synchronizations are done through lighting-USB2 cables.
So annoying. Weāre the rare local USB synchronizers. :(
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So sorry to hear you went through this experience. āAnnoyingā is putting it mildly.
This is exactly what I (and also Will on this thread, and who knows how many others) went through. You might want to read through the thread to get a little more context.
My best advice for the time-being is: You might be able to recover your basic Calendar data, if you have a good backup which took place before the local-sync incident with Ventura. This entails copying the good data from your backup, to replace the corrupted data area, where the Calendar data resides (I believe somewhere in the Library, but the thread info above is a bit more specific.)
I guess the next thing to consider is: Do you want to switch to syncing over the cloud? I did not take this step (of syncing on the cloud), and so, I am sort of limping along at this time, by having my Calendar residing (and kept up to date) only on one of my Macs, and not having my Calendar on any other Apple devices, and not doing local-syncing any longer.
Itās a royal pain in the butt, in my opinion. I feel Apple is simply not caring about older stuff that used to work, and so, when Apple makes software changes, bugs are being introduced into the code which used to work, but no longer works. The worst part (in my opinion) is, now one never knows what is next, in terms of older code which is going to break.
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OK, frustrating. Others and I donāt want to use the clouds at all. :( I left a bug reports to Apple online about this issue. I even linked this thread. Letās all do this to convince Apple that there is a problem for these USB sync. I also noticed a newer Ventura version. I doubt it will fix this issue. I also worried if we ever have to restore from back ups. Do back ups even have the iPhoneās updated calendar events or is Calendar app broken? We can live with the duplicate events. We just donāt want to lose them in both Mac and iPhones.I also tried viewing macOSās Console logs but geez too much stuff to go through. :(
I hear you, regarding āfrustratingā.
Regarding backup solutions to corrupted Calendar data repair, I was referring only to the Mac side of the problem. I simply gave up trying to repair my corrupted iPad Calendar data (which before Ventura, I used to locally sync to my Mac). There may be a way to repair iPhone (or iPad) Calendar data, but I am not sure what to suggest in this regard.
I do see a new version of Ventura now (13.6.3), but Iām afraid you are correct, in that this software update will probably not fix the issue at hand. (that is, local-syncing of Calendars, working correctly again)
If you do have any luck with your current ideas, please post to this thread, so I may be informed.
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Yeah, letās stay in touch. Also, I found these some threads, posted in them, and even shared to Appleās bug reporter online like in Feedback Assistant (FB13461362):
https://discussions.apple.com/thread/254982807
https://discussions.apple.com/thread/254549186
https://discussions.apple.com/thread/254463571
https://discussions.apple.com/thread/254650642
etc. (only can do five links as a new user)
I am hoping this will get their attentions. If you find any other threads like ours and these I find, then please kindly let me know.
Wow, thanks for the reminder why I donāt waste my time on Apple Discussions. Five separate threads on this issue, and all anyone is getting is condescension. Still my Feedback reports are flagged, āRecent Similar Reports: None.ā
Local (USB) syncing of Calendars and Contacts has been broken since the first betas of Ventura. Iāve easily spent more than an hour on EVERY update and beta since Ventura, trying to narrow it down, countless clean installs, updated my Feedback 24 times since 11/20/22. It has gotten progressively worse under Sonoma, to the point that the āSyncServerā process crashes instantly when you click the sync button.
Sigh, my DayTimer never crashed.
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Will, how did you see that process crash? I never saw an error message pop up.
Another annoyed Ventura Mac ā> iPad would-be USB syncer here. It still doesnāt work. I had a similar ābeserkā problem a year ago. Itās not a true backup, but now I periodically āprintā my calendar to a pdf so if it happens again I havenāt lost the information.
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I actually was getting one of the full-blown system traces in a dialog that asks you to tell them what you were doing when it triggered and send the trace to them.
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Wow. I wonder if mine and othersā crashed too even though I/we never saw anything.
The āSyncServerā crashing didnāt start until Sonoma, on my system at least. But the Calendar corruption started w/ Ventura.
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For kicks, I renamed ~/Library/Calendars, saw macOSā empty Calendars, and did a Finderās iPhone sync. Bad idea. iPhoneās calendar events got removed too. DOH! So, I exited macOSā Calendar, put back the old ~/Library/Calendars, rechecked macOSā Calendar, old datas were there without the newer datas (added events), resync, and of course iPhone donāt have all the datas like the new added events. I made a new calendar event as test for all day and then resync, and it showed up in macOSā Calendar. Deleting iPhoneās test all day calendar event and resynced. Both test event gone. Hmm!
Apple needs to provide a way to go from iPhone to macOS only when syncing (Finder and iTunes have the option to from macOS to iPhone to overwrite). Dang it, Apple. Come on please. :(
I put in a feature request for that a few months ago, with Feedback Assistant. The more folks that do that the better chance of getting it. Iām not sure how much attention Apple pays to Feedback, but Iām pretty sure more than it gives TidBITS (sorry, Aceā¦ :-)
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Ooh, good idea. I will do that now! Letās all do it!
Will, just curious. Did you ever tell Apple about your USB sync crash in Sonoma with your crash reports?
Repeatedly. I confirmed the persistence of the crash with every update and beta of Sonoma.
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Good. I assume in your developer feedback case.
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Has anyone tried local (no iCloud) wifi sync yet even though it will be much slower than USB sync? I wonder if that will work.
Did, it didnāt.