From 1e8dd07976bb8a720194c8e8bb727024a7b5b002 Mon Sep 17 00:00:00 2001
From: Jeremy Bullock <jcbullock@gmail.com>
Date: Dec 10 2020 09:06:28 +0000
Subject: Fix crash on exploding sub xsheet with only sound. (#194)



---

diff --git a/toonz/sources/toonz/subscenecommand.cpp b/toonz/sources/toonz/subscenecommand.cpp
index 265fec0..e454d85 100644
--- a/toonz/sources/toonz/subscenecommand.cpp
+++ b/toonz/sources/toonz/subscenecommand.cpp
@@ -914,6 +914,7 @@ void explodeFxs(TXsheet *xsh, TXsheet *subXsh, const GroupData &fxGroupData,
     TFx *outerFx           = pair.first;
     // skip redundant item. in case when only one node is input to the xsheet
     // node in the inner dag
+    if (!outerFx) continue;
     if (outerFx->getAttributes()->getGroupId() == groupId) continue;
     outerFx->getAttributes()->setGroupId(groupId);
     outerFx->getAttributes()->setGroupName(L"Group " +