Completely unable to use any account for video calls on microsoft teams.

Hello,

I work as a consultant and logged in once at my old clients (client A) teams environment for a call.

I do not work with client A anymore but whenever I click "open with teams" for a video call, I get prompted to login to CLIENT A's environment, with their logo and all. I tried a million different things and have browsed this forum for a month without any success. My account i stuck in limbo.

So I tried setting up a completely new account that has nothing to do with Client A in any sort of way. Guess what, I'm still being sent to CLIENT A's login screen for teams when I click "open with teams".

So I tried reinstalling microsoft teams, to no avail... I'm still getting pushed to login to Client A's login domain. This is not a problem with ANY OTHER microsoft product, ONLY with teams.

During this entire thing I've never ever once been asked to even input a password. I simply get called to add my e-mail/login name which ofc gets rejected because I'm not working with Client A again.

Please, help me sort this out so I can continue working and not always have to login as an anonymous user with no functionality and ability to gain permissions.