Transaction not yet indexed

WMUMZrp6kReiMeFoZjYKMBUb2ZuUH1wM48EcppCdVEf7isM8UZedCJqP4B7XLcwi1APDWSW27YZoBVN9nBmMpcZ

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