From 53c9f9e6640bc5143f4cd0f9c8922cc7b1d29439 Mon Sep 17 00:00:00 2001
From: Alex Johnson <alexj728@gmail.com>
Date: Fri, 17 Jun 2022 14:42:51 -0400
Subject: [PATCH] Fixes issue where sometimes clear route doesn't work on DMPS3

---
 .../Essentials_DM/Chassis/DmpsRoutingController.cs              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsRoutingController.cs b/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsRoutingController.cs
index 074880e6..17aa1b1d 100644
--- a/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsRoutingController.cs	
+++ b/essentials-framework/Essentials DM/Essentials_DM/Chassis/DmpsRoutingController.cs	
@@ -1357,7 +1357,7 @@ namespace PepperDash.Essentials.DM
                 else if (inputSelector <= Dmps.SwitcherInputs.Count && outputSelector <= Dmps.SwitcherOutputs.Count)
                 {
                     var output = Dmps.SwitcherOutputs[outputSelector] as DMOutput;
-                    var input = Dmps.SwitcherInputs[inputSelector] as DMInput;
+                    var input = inputSelector == 0 ? null : Dmps.SwitcherInputs[inputSelector] as DMInput;
                     output.AudioOut = input;
                 }
             }