Transaction not yet indexed

ac188GakUgYsvBC9xf3m4G9TmJUkGd2TgFtQAtkgvNu353PcSPtPVDuQD3bxZcF2t1UTmdCT6kjFyyeo7fDj1oL

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