Since installing Sequoia OS yesterday my computer is freezing and I cannot use calendar app - any suggestions on how to fix or uninstall and revert back to my old OS?
[Re-Titled by Moderator]
MacBook Pro 16″, macOS 15.0
I posted a week or two ago with the same issue. A few days later i gave in and chatted with apple support, which escalated 3 times until a senior tech called me to work through the issue. Long story short, everything she offered and tried did not work and she was surprised and said she had not seen this before (even though I told her many people in the discussion group were posting with a similar experience). The next day, though, I figured out a fix myself.
Problem: If I launched Mac Calendar on Sequoia 15.2, wheel starts spinning immediately, then about a minute later error message that my mac is running out of application memory. From the list of applications, the calendar is taking 150GB and the number keeps climbing. Only option is to force quit the Calendar.
TLDR -- Solution that did work was:
1) Launch Mac email
2) Click Mail/Accounts. For each account that has calendar activated, disable the Calendar. Even if it says it will delete that calendar from your Mac.
3) Once you're done disabling all calendars accounts, launch Calendar App. That's the first time in a couple weeks it did not require a force quit, because it's not trying to launch and sync any accounts.
4) Now go to Calendar/Accounts, and add one account at a time. When I tried to add all of them, it hung again. My regular huge gmail file (a couple decades worth) loaded fine. That game me hope. My business account loaded fine, so 2 main accounts were working.
5) When I activate my Contacts calendar account (which syncs all the birthdays in contacts so it shows up in the calendar days), it hung and needed a force quit.
No idea how to fix that file, but for now I've just disabled that sync and my calendar app is working again.
Things that did not work that tech support tried with me:
-- disabling icloud sync
-- creating a test user and seeing if calendar app worked (it did)
-- logging in in safe mode a couple times
-- multiple reboots
-- finally, re-installing the OS, still did not work
Hope that helps
ehatcher wrote:
Since installing Sequoia OS yesterday my computer is freezing and I cannot use calendar app - any suggestions on how to fix or uninstall and revert back to my old OS?
Does it freeze under any other conditions(?) this is unclear from your wording...
If it directly correlated to Calendar.app — quite Calendar and relaunch it holding the Shift key down and compare your results.
no resolve—
A SafeBoot Use safe mode on your Mac - Apple Support will sort many anomalies
Login and test. Reboot as normal and test.
End up having to remove all subscribed calendars. Tried adding one locally to my Mac via a new Calendar and the calendar started freezing and I would have to force quit out.
If you can't get Calendar to open try clearing out the `~/Library/Calendars/*` folder.
Would love to see this issue fixed so I can add my subscribed calendars back.
This does appear to be resolved by installing MacOS Sequoia 15.3 (24D60). My first 2 or 3 tests editing and creating new calendar entries worked fine. I would still like to know why this took so long to fix. It is not how I would expect Apple to behave.
I turned off the synchronization of my calendars in all my internet accounts and restarted the Calendar. Then I turned them back on. All seems fine now. Calendar does not crash anymore!
Same problem. After deleting the subscribed calendar with NFL matchups the Calendar App works properly.
kauai wrote:
This appears once again broken in macOS 15.3.1. Prior I could turn off all iCloud calendars in the sidebar and one by one bring them back, and it would work. Now eternally Searching... again. Can we have Apple Support investigate this closely.
You can escalate your issue up the chain of command—
Call Customer Support (800) MY–APPLE (800–692–7753)
or on line https://getsupport.apple.com/
Outside the USA—Contact Apple for support and service by phone
See a list of Apple phone numbers around the world.
Contact Apple for support and service - Apple Support
you can file a bug report / submit your Apple Feedback direct to the Product Team, here: https://www.apple.com/feedback/calendar/
That is exactly what is happening to me too.
For now, I am just logging into iCloud.com and using my calendar inside Safari. It is synching properly with my iPhone and my iPad which is what I need. In the meantime I am just waiting for the next Sequoia update in the hope that it will fix Calendar on my Mac.
Just like Big_Mac_Fan said, I have iCloud calendar with Google calendar synced to it, nothing fancy, and Calendar app freezes every time I open it.
I too have the same problem with iCalendar on my 27" Intel iMac running 15.2. The "only" solution I have found to work is closing iCal and then opening iCal via iCloud in a separate Safari window and keeping that window open and not using iCal on the Mac itself. Not really a GREAT solution but at least everything between the Mac and my iPhone and iPad syncs properly again. Apple FIX this ASAP!!!
I have the same Problem! But his problem only occurred if I start calendar with iCloud access. Without iCloud access calendar runs stable. But it make not sense ...
Hey all - try upgrading in Safe Mode and that seemed to fix my calendar.
It seems that my calendar is an issue when I drag the calendar view over to my second screen. If I open Calendar and leave it on my primary screen (MacBook Pro), it doesn't close down prematurely. I have tried reinstalling Sequoia, but that didnt work. I have tried opening in Safe Mode. Didnt work. So, I will stick with leaving the Calendar view on the main Mac screen and hope for a fix in an update.
ehatcher wrote:
As far as I can tell it is unique to icalendar. I have had to force quit each time and am unable to edit any calendar items or even add any. It just freezes and spins. Rebooted and worked with Apple to check disk repair to no avail.
The problem is most likely caused by 3rd party software trying to interact with Calendar.
I am adding my experience so they can fix this as well. I sync my calendar to Google and Outlook, and I think with the new reminders update, when I look at my calendar in the monthly view, It looks completely disorganised and glitched. I added an image. Please fix this ASAP I use my calendar to organise my whole life
This appears once again broken in macOS 15.3.1. Prior I could turn off all iCloud calendars in the sidebar and one by one bring them back, and it would work. Now eternally Searching... again. Can we have Apple Support investigate this closely.
Why is my Calendar app not working after macOS Sequoia update?
