Exchange account not appearing or syncing on iCal

Hello,

I have seen this message posted on many forums and threads, some of them many years old.

In short, my professional exchange account syncs perfectly on my iPhone and iPad, but not on my MacBook Pro. Email works well in the mail App, but nothing shows up in the Calendar. Some day, it just stopped working and got me in trouble double-booking meetings etc ...

I have tried *everything* that I read online - the sync exchange, resetting the account a gazillion times, etc ... nothing works. I'm desperate and it's making me waist so much time every day.

Please help :)

PS : I'm on sequoia 15.4.1.