Transaction not yet indexed

mAmbbg2uDh1HypqmfUDtHyTQoCsTwauSitV66P7PxHegWthYVPkfqSgDriEVF8oU35Dv2rMsKAjPKQqQ8WTZgM7

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