Transaction not yet indexed

Am8mhEyQJEwS9cT4KH6ZRMtAwrtC18yMQSiFTGFKBUMUbRWgmK42j8v2SCMdVHJVSiYHnowTHKyBbtQQ2WXT3Dq

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