Transaction not yet indexed

RF88msUTMbKygr5Ym4YYfnBKLNPxSFbpexbEfE9kTGNEQQxLkAgE8zLK268ntYJD5fWtZ5D7P235pZAydLY4Gxi

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