Remove ValidationFail books from queue display. Nothing to see there.

Source/LibationWinForms/ProcessQueue/ProcessQueueControl.cs

@@ -171,12 +171,16 @@ namespace LibationWinForms.ProcessQueue
 
 				if (result == ProcessBookResult.FailedRetry)
 					Queue.Enqueue(nextBook);
+				else if (result == ProcessBookResult.ValidationFail)
+					Queue.ClearCurrent();
 				else if (result == ProcessBookResult.FailedAbort)
 					return;
 			}
 
 			Queue_CompletedCountChanged(this, 0);
 			counterTimer.Stop();
+			virtualFlowControl2.VirtualControlCount = Queue.Count;
+			UpdateAllControls();
 		}
 
 		public void WriteLine(string text)

Source/LibationWinForms/ProcessQueue/TrackedQueue[T].cs

@@ -94,6 +94,23 @@ namespace LibationWinForms.ProcessQueue
 			}
 		}
 
+		public void ClearCurrent()
+		{
+			lock(lockObject)
+				Current = null;
+		}
+		
+		public bool RemoveCompleted(T item)
+		{
+			lock (lockObject)
+			{
+				bool removed = _completed.Remove(item);
+				if (removed)
+					CompletedCountChanged?.Invoke(this, _completed.Count);
+				return removed;
+			}
+		}
+
 		public void ClearQueue()
 		{
 			lock (lockObject)