Bug: Trying to chat with yourself locks MIcrosoft Teams.
If you search for yourself in the People search and double click it (to chat wit yourself) all chats lockup and you are not able to open any chat or team anymore.
Tested on the windows desktop -application and on the website-version running on firefox. Happens to me and at least twocolleagues.
One colleague could not find himself with the search, so could not be tested.
When the chat locks up, the desktop application has to be restarted. On the website version the site-tab has to be manually refreshed.