Transaction not yet indexed

Am7Nk5uh6X1MSvzTxe2sgBiRvkHDpwehdPqTByWQ6quW4AjCLuZnsxHSSvbT75ZSKMLRCx1yWzHMnGJD8W2R9dM

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