There Seems to be a conflict

[chino.castro]

End user recently change her email from mariadelpilar.toro-ortiz to maria.dpto because there company deleted her email address. Whenever she logs in to there BIM360 Team Hub using her new email address, she gets a message saying that "There seems to be a conflict The person using maria.dpto@wework.com has already been invited to this hub. Have you recently changed the email address associated with your Autodesk Account? Please post this issue to the A360 Forum for help resolving the conflict. You're already signed in as maria.dpto@wework.com Not you? Sign in using another account". They can't receive the email verification for "change email" because the old email is no longer available since her company deleted that email address.

[dill.khan]

1 You go to your Autodes Manage area here are all the licensen you can assign to the staff
2 You take the license away then delete the old email id.
3 Then add the new email addy but make a little difference to the name. (Not with the Email ID) here asks autodesk   for a user name that should be different bite as the previous email addy.
4 Now you can assign the Licensen and it should all funktion.

I hope I could help you who yes please give a kudo or accept this answer as a solution.

Best Regards
Dill Khan