Transaction not yet indexed

Am9XjSU6PaKXhE29ncTKAD719HquRpSeEzgWq12onPAXSpadFt7Ee7dcUpPh1e6DdhdnSnmbXMJCWEtRsrHGtG4

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