Transaction not yet indexed

EN2u88nNvWpGtpUm8UvbSVmZoVmNSdxhRMccUXqQTcpcfPceKDB87ZZpm4GBeRbwAyFH1NceShFcMwxhPsB1PME

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