From 1c328acdc80addf176a2740833648b60c00642b9 Mon Sep 17 00:00:00 2001
From: Nikolaj Olsson <nikse.dk@gmail.com>
Date: Sun, 11 Aug 2024 19:11:46 +0200
Subject: [PATCH] Fix bad xml replace in "TTML 1.0"- thx Info :)

---
 src/libse/SubtitleFormats/TimedText10.cs | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/libse/SubtitleFormats/TimedText10.cs b/src/libse/SubtitleFormats/TimedText10.cs
index 9f71fd677..3154c70c2 100644
--- a/src/libse/SubtitleFormats/TimedText10.cs
+++ b/src/libse/SubtitleFormats/TimedText10.cs
@@ -528,8 +528,21 @@ namespace Nikse.SubtitleEdit.Core.SubtitleFormats
             try
             {
                 text = string.Join("<br/>", text.SplitToLines());
-                XmlDocument paragraphContent = new XmlDocument();
-                paragraphContent.LoadXml($"<root>{text.Replace("&", "&amp;")}</root>");
+                var paragraphContent = new XmlDocument();
+
+                try
+                {
+                    paragraphContent.LoadXml($"<root>{text.Replace("&", "&amp;")}</root>");
+                }
+                catch 
+                {
+                    var guid = Guid.NewGuid().ToString();
+                    var tempText = text.Replace("&amp;", guid);
+                    tempText = tempText.Replace("&", "&amp;");
+                    tempText = tempText.Replace(guid, "&amp;");
+                    paragraphContent.LoadXml($"<root>{tempText}</root>");
+                }
+
                 ConvertParagraphNodeToTtmlNode(paragraphContent.DocumentElement, xml, paragraph);
             }
             catch  // Wrong markup, clear it