Test Flight PC How to re-enter login credentials?

Short Story:
Is there a way to reset the Login for the Test Flight on PC? I made a mistake when entering my credentials and there doesn’t seem to be a way in the manager to re-enter credentials. Is there a file that is cached in AppData or something that I can delete to reset this process?

Full Story:
I assumed that having my phone tied to my Microsoft account would automatically include it as a login option. This is not the case and trying to login to MS when requested in the Test Flight application sent me to creating a new account using that phone number. Clearly I didn’t want this but there is no back button so I killed the process and added the phone number to my core MS account, then tried to start up the process again. Now when the XBox login window pops up, attempting to login will automatically take me to a “Something went wrong” error message that says:

“There is a problem with your Microsoft account. To fix this, sign in to account.live.com from a browser.”

Which doing so resolves nothing as the account is already created and there are no issues with it and now has me stuck.

– Edit
Gonna try uninstalling and completely deleting everything in the test flight folder in programs folder. Will report back if it works.

– Edit 2
It did not, gonna have to wait on support.

Bump

Well seeing as there appears to be no solution to this issue and 343 Support refused to acknowledge the software issue it looks like this is a permanent lockout of the test flight. If you have this issue there apparently is no solution.