Thank you for responding Jeff!
I have restarted the phone several times.
It started shortly after MS updated to 10. There was and iOS update on my iPhone, I’m not sure which one maybe 2-3 updates ago and that’s when it started.
My iOS it the most current for my phone, I 14.3. I only use Outlook to send out invites to people, I would not know if it is happening with other types of calendars. Outlook is the calendar I have to use for work, therefore that is the only one I care about working properly.
Looking forward to hearing back!
Dyanna