I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "[The question author cannot accept their own answer. They can only accept answers by others] (https://docs.microsoft.com/en-us/answers/support/accepted-answers#why-only-one-accepted-answer)**)", I'll repost your solution in case you'd like to "[Accept] (https://docs.microsoft.com/en-us/answers/support/accepted-answers#accepted-answer-in-a-question-thread)**)" the answer.
Below are the steps you followed to delete organization from your personal account,
- Went to Columbia Tenant and created a new user
- Gave that new user Global Administrator Role
- Logged in as that user.
- deleted my original user.
- deleted tenant.
This broke Microsoft Entra (If I clicked on Microsoft Entra it would give me the Bug seen above and would essentially wreck my Azure session until I logged out and logged in again.
I then deleted all Subscriptions and created a new Subscription. At that point Microsoft Entra Id seems to work again.
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.