Calendar link to Mac


When I get an invite in my mail and I click the button to download that invite it opens the native Mac email app where my calendar is and asks me where I’d like to add the event - which defaults to the Microsoft Exchange calendar that I use, I click OK and then nothing happens - so I can’t get an invite out of Mailspring into my calendar?

Apple said try you first as it may be a problem with Mailspring not the Mac app.

Can you help?