@ICT CSO Its a cache issue where the application takes time to update the updated version of details. Manually clearing the cache would help on local machines, for others you need to wait till it propagates.
Here is how other people are clearing cache :
https://techcommunity.microsoft.com/t5/microsoft-teams/team-members-title-and-location-not-updating/m-p/166385
https://techcommunity.microsoft.com/t5/microsoft-teams/teams-does-not-refresh-members-information-from-office-365-admin/m-p/206102/page/2
You will need to wait till it syncs on its own for others.
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