Transaction not yet indexed

iUmXRbGGVAcE6davZVutVZzGt11FmdTCRcsdWi5yXPVhKA5Zb5UwsAtVPtiYeQBCJdaiRyBCM8jdD1k7vdfjSDQ

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