Outlook 2025 Crashes When Opening Calendar View. If the outlook cache data gets corrupted, it can cause outlook to crash while opening calendar events, invites or appointments. If it doesn't work in owa, then the issue is server side.
After setting outlook up to connect to my o365 mailbox, my calendar would show the thinking icon whenever i opened the calendar (month view, day view, etc.). Or run outlook.exe /resetviews or.
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