From cc113c663cd26a689decfc2d7cd34a929b1d4030 Mon Sep 17 00:00:00 2001
From: eshifri <46511024+eshifri@users.noreply.github.com>
Date: Sat, 1 Oct 2022 22:11:49 -0700
Subject: [PATCH] fix(cpn): Crash when "Set Main Screen" GF used and no model
 exists (#2439)

---
 companion/src/modeledit/customfunctions.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/companion/src/modeledit/customfunctions.cpp b/companion/src/modeledit/customfunctions.cpp
index 17b520e65..af6430b6c 100644
--- a/companion/src/modeledit/customfunctions.cpp
+++ b/companion/src/modeledit/customfunctions.cpp
@@ -510,7 +510,10 @@ void CustomFunctionsPanel::refreshCustomFunction(int i, bool modified)
       } else if (func == FuncSetScreen) {
         fswtchParam[i]->setDecimals(0);
         fswtchParam[i]->setMinimum(1);
-        fswtchParam[i]->setMaximum(model->getCustomScreensCount());
+        if(model)
+          fswtchParam[i]->setMaximum(model->getCustomScreensCount());
+        else
+          fswtchParam[i]->setMaximum(1);
         fswtchParam[i]->setSingleStep(1);
         cfn.param = fswtchParam[i]->value();
         fswtchParam[i]->setValue(cfn.param);