cant invite myself in calender event with my work email to see it in my company exchange

Hello

the last couple of years I used to create an event in my private apple calender and invited myself with my company email. Since some weeks I realized I don’t get those emails as invitations in my company exchange (Microsoft office 365) anymore.

I can invite my girlfriend (email) and she receives those mails with the apple calender invitation text. Like i used to get and still want.

Is it because i have my company mail in my contacts card associated with my person? I deleted the company mail and created a new contact " my name company" with my company email with no success.

Is there a better process to sync events with private calender events and microsoft 365 calender?

Thank you swarm intelligence