Transaction not yet indexed

MUbk4WTpUdUZhDaeTEZoP9QhTJcgK7KmnZ59mcyRdPjACsC2c8Dnsj9DSiMTsBG26i52W6TXtHiDTqSpWKBC8Mg

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