Transaction not yet indexed

mx88XnmKKiatGZkyfvKSCM1CKEoBPokk5hCvRej17hJSdz9Rc1MJJsHvs9QSWTxwqbqs2krYGfgySnVT3JqN5Tn

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