It works a bit strange to me: I created an activity with a global user. Main CRM company is 2. I work in the company 1. I cannot see anything in the calendar, however when I click the "report" button I can see the activity I have created.
Hello,
We also have a customer on windows who is on 2026-02-28 having the exact same error message after updating.
The title of the messagebox is in our case is: "C:\Program Files(x86)\Han...