Transaction not yet indexed

668ZhvZkV4bDXQUJwcAsdDShLsb6BXUtf3NE6U7MpML4BnMGq9ZEmVUh2k52ojd4WZPKeSWAJApd5YwCEBZoSwap

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.