Forum Discussion
Some Events Not Syncing With All Apps
I have the same issue with some events not showing in the Apple Calendar app. New events created in Outlook app or OWA will appear on iPhone Calendar, but not on Mac. Events created on Mac calendar will not appear anywhere else. Events created on iPhone appear o Outlook and OWS, but not on Mac. The issue appears to be with Apple Calendar. I have recently deleted my exchange account and re-added it to try to resolve the issue, but it's clearly still there. Basically, I can't trust the Apple calendar view as some calendar updates seem to get lost. I'm not sure what asking for calendar refresh does, but it doesn't seem to invoke a full sync.
Hi Ian, do you have Malwarebytes on the Mac by chance? VPN/Firewall?
- Ian_LewisJun 26, 2025Brass Contributor
Hi Lisa. No, malwarebytes is not installed, and I'm not using a VPN. There is nothing configured on the Mac firewall. My home router firewall is enabled, but there are no rules configured.
- LisaHendricksonJun 26, 2025Iron Contributor
I'm wondering if the mac calendar is not setup for new security and that might be causing it. Are you seeing a security prompt or a "connected apps" when I setup the account?
- mattcorkumJun 30, 2025Copper Contributor
No prompts or anything.
I deleted the account and re-added it and it seems to be working now, but hopefully it doesn't stop working like it did for Ian below.