From 308bbc119ad335fbadbcdda6380a0418fa6a411f Mon Sep 17 00:00:00 2001
From: manongjohn <19245851+manongjohn@users.noreply.github.com>
Date: Tue, 3 Oct 2023 10:03:43 -0400
Subject: [PATCH] Fix crash exploding subscene with only audio

---
 toonz/sources/toonz/subscenecommand.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/toonz/sources/toonz/subscenecommand.cpp b/toonz/sources/toonz/subscenecommand.cpp
index 1df1c505..f683c6d1 100644
--- a/toonz/sources/toonz/subscenecommand.cpp
+++ b/toonz/sources/toonz/subscenecommand.cpp
@@ -973,7 +973,8 @@ std::set<int> explode(TXsheet *xsh, TXsheet *subXsh, int index,
 
   QMap<TFx *, TFx *> fxMap;
   for (auto it = fxs.constBegin(); it != fxs.constEnd(); ++it) {
-    setGrammerToParams(it.value().first->getParams(), grammer);
+    if (it.value().first)
+      setGrammerToParams(it.value().first->getParams(), grammer);
     fxMap.insert(it.key(), it.value().first);
   }