From d0cae8c2fc1f4c3ddfbd831006fb38c1ebdee3eb Mon Sep 17 00:00:00 2001
From: Paul Larsen <plarsen@volian.com>
Date: Mon, 4 May 2026 08:48:51 -0400
Subject: [PATCH] 
 B2026-042-Fix-Null-Error-for-Set_At_All_Level-in-the-Applicability-tab-evaluate-having-the-button-grayed-out-for-the-RNO-column-4

---
 .../DisplayApplicability.cs                       | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/PROMS/Volian.Controls.Library/DisplayApplicability.cs b/PROMS/Volian.Controls.Library/DisplayApplicability.cs
index 5022dde7..271f1f98 100644
--- a/PROMS/Volian.Controls.Library/DisplayApplicability.cs
+++ b/PROMS/Volian.Controls.Library/DisplayApplicability.cs
@@ -394,16 +394,13 @@ namespace Volian.Controls.Library
 				if (_MyItemInfo != null)
 				{
 					if (this.Visible == false) return;
-					if (_MyItemInfo != null)
+					if (_MyItemInfo.IsRNOPart == true)  // Check if step is an RNO disable "Set All To Level" button.
 					{
-						if (_MyItemInfo.IsRNOPart == true)  // Check if step is an RNO disable "Set All To Level" button.
-						{
-							btnApplicabilitychg.Enabled = false;
-						}
-						else
-						{
-							btnApplicabilitychg.Enabled = true;
-						}
+						btnApplicabilitychg.Enabled = false;
+					}
+					else
+					{
+						btnApplicabilitychg.Enabled = true;
 					}
 					IItemConfig cfg = _MyItemInfo.MyConfig as IItemConfig;
 					List<int> apples = cfg.MasterSlave_Applicability.GetFlags();