Transaction not yet indexed

AMAtZnPD5CUtDdaaJyUBM2xJWfQb1jrc5u1NVw1WoULE88TA2dcG29BKneBpC5UAzke3mHCmurBTF8fLVwMnsww

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