Airtame not working after Mac update

Airtame should be allowed to use the screen

This morning Airtame did not work. So the reception helped me and a guy from the servicedesk arrived. He found out that Airtame worked. After a while I vaguely remembered that my Mac was updated to a new version. I told the servicedesk man - and then he knew what to do.

Above you see the setting. Airtame was blocked, but the OS did not care to tell me.

Improved security is ok, but dear developers from Apple - please let us know what the problem is when you block something.

For security reasons updating is important. But the user experience often is the opposite: updating you system is the recipe for trouble.