Transaction not yet indexed

5K66CdXE8LdMA5JYoyNBKrQEeMuQJsoSVrMpmFSk2ambeHveCjE6XSNAfNy9bVHzfatq9TGhTbquTNf16vZ3mER2

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