Transaction not yet indexed

NPp6cpeCpoRPG9a9MaD5nEV36KhE13TC1bzFbKG3aPRRpfN76ngH2jsSYoiJERui6e59mMdRRxzbqMtx4ohCLd1

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