Transaction not yet indexed

stffkRUwrfACymX2yANEe9AGQ1nmvkXuVceDoX1gMS2eSKxcvFxAhUDsqXHCSU9oU1TK4Bx511TkXJKqjSpNT16

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