Transaction not yet indexed

Nb6DZwh3eEbRYQaooSnBanU9TmXEPSB7Ezbz2SYxAMdv4SFx5StFMnDbVJK2QeW75d13SaxZ78vBPARGkqZWsn1

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