Transaction not yet indexed

Y88QyArfidQRTK8w86BfbvZk6i2xXc2UEGFFrk2pE5TP2Qs1HV9W93jL4t8ceNRY2equKE5SWyDGomCUqNL8Sou

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