Supabase splits identity across auth.users (managed by Supabase Auth) and your app's tables, and clients typically query by auth.users.id — not by your table's id. When those UUIDs don't match, the user lands in the fallback screen even though their profile row is sitting right there in the database. The bug looks like a routing problem but is actually an identity-modelling problem you didn't make explicit at schema design time.
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