Hide unsuccessful outgoing lndhub txs in list

app/controllers/services/lightning_controller.rb

@@ -86,6 +86,10 @@ class Services::LightningController < ApplicationController
       end
     end
 
+    # Handle an edge case where lndhub.go includes a failed payment in the
+    # list, which wasn't actually booked
+    txs.reject!{ |tx| tx["type"] == "paid_invoice" && tx["payment_preimage"].blank? }
+
     txs.sort{ |a,b| b["datetime"] <=> a["datetime"] }
   end
 end