I am the meeting organizer, but Teams will not allow me to access Meeting Options

I've had the exact same problem YesimNuman 

I did some tinkering and found - by sheer fluke - that it depended whether I'd added the Team meeting in my Teams calendar or in my Outlook (i.e. email) calendar. 

If I created the Teams meeting in my Outlook calendar then whenever I was working in the Teams desktop application, it kept telling me I didn't have the rights to delete/edit the meeting.  Also if I tried to join the meeting from the Teams app I got a message saying someone would let me into the meeting soon.  These are meetings I had arranged, from the same account.

Really frustrating - but now I just arrange all meetings in the Teams calendar and join the meetings also via the Teams application (desktop or phone).  And if it doesn't work, I know to try going in via my Outlook calendar because I've obviously had a brain fade and forgotten my own rule 😉 

Yes it's stupid and it should sync - it's the same account, after all - but maybe tech isn't as smart as we'd like to think!!  Hope this helps. Stay safe.