Transaction not yet indexed

MB12a9wLCkWKVmuyVY5awSWT4VycnLPrpaqKzhinZyXiipnRDR4jUE8kMjD5hKNiyqhUdT77ZJ11qPSvxMLt8Pi

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