From 74325364956e4cc12348c869636ec8a462b924da Mon Sep 17 00:00:00 2001
From: niksedk <nikse.dk@gmail.com>
Date: Sat, 11 Dec 2021 14:55:42 +0100
Subject: [PATCH] Improve error handling

---
 src/libse/SubtitleFormats/TimedText10.cs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/libse/SubtitleFormats/TimedText10.cs b/src/libse/SubtitleFormats/TimedText10.cs
index 9f5da25dc..36d26da0d 100644
--- a/src/libse/SubtitleFormats/TimedText10.cs
+++ b/src/libse/SubtitleFormats/TimedText10.cs
@@ -1355,6 +1355,16 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
                 var nsmgr = new XmlNamespaceManager(xml.NameTable);
                 nsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
                 XmlNode head = xml.DocumentElement.SelectSingleNode("ttml:head", nsmgr);
+                if (head == null)
+                {
+                    head = xml.DocumentElement.SelectSingleNode("head", nsmgr);
+                }
+
+                if (head == null)
+                {
+                    return list;
+                }
+
                 foreach (XmlNode node in head.SelectNodes("//ttml:style", nsmgr))
                 {
                     if (node.Attributes["xml:id"] != null)
@@ -1369,7 +1379,9 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
             }
             catch
             {
+                // Ignore
             }
+
             return list;
         }