Transaction not yet indexed

ab51tfusQjYknzbFYn1R316hGKHtCBcfZGpS4BahwpN833pvc7WwZPZeuPCav9Tw49wbUqVGC5tHEf21gC2UPcS

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