Microsoft Teams doesn't show right profile picture

I changed my profile photo about month ago. M. Teams doesn't show it. I still see this old one (this old was my first profile photo if it is important). 
I can not change it by Microsoft 10, because I use my school account in Teams. I changed it in Outlook too.
When I click on my profile I see the new profile picture is picked up (sometimes I try to upload it again). Some people see the new photo, but last time I noticed that some person see thit old one while his presentation on Teams. I see old photo too when I join Teams meeting.
How to fix it? It works correctly on my phone.