Very interesting. Two observations:
1. It seems to see my NIP-05 (_@shawnyeager.com) as invalid. I assume it's the underscore.
2. The Trust Index tab doesn't appear to accept npub1 format.
Thanks! Yes, that is a bug ๐ we are on it.
About your NIP-05 address, that's not the reason. It also appears invalid in different clients, including njump.me. Check CORS