Hi @Sedat Eyüboğlu
Could you please tell me:
1.
Are you unable to switch organizations under the avatar in the upper right corner of New Teams
Please try clearing the Teams cache and restarting:
If you still can't switch organizations after clearing your cache, please try using the Teams web client.
2.
External users appear as location users. This issue is currently a known issue in New Teams: Users may see a stale profile or unknown user for federated users in external chats and calls in Microsoft Teams.
Microsoft expects the fix to be deployed by mid-April 2024 and will correct the impact for all users.
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