Transaction not yet indexed

mdKW2eFfqrGAL16dqa3CxkirXGDVAJob1WYEJpJUVTVVhDNsXXAs7wgdfKGWLRdpkF3wHdJoC2oTkVDvpsRyQv9

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