Adding an address, verifying it, and making it your primary address are separate steps. An unverified address is not ready to replace the primary sign-in email. Changing a team's notification address also does not change your account identity.
Review the email list in Account settings and confirm which address is verified and primary. Complete verification before selecting the new primary address. Keep access to the old address until the change is confirmed. If the saved state does not match the completed action, send support the time and displayed state, with verification links and codes removed.