There's an on-going issue with the New Edge experience where a subset of users cannot see their list of organizations in which they have membership. They appear to have to way to change their organization from "Personal Space."
A fix is forthcoming, but in the meantime, you may be able to work around this issue by simply changing your email address to all lowercase, and then log out and back in again.
Note: this is listed in the known issues in the new docs site.
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