fixed version explorer issue

Signed-off-by: chcurran <82187351+carlitosan@users.noreply.github.com>

Gems/ScriptCanvas/Code/Editor/View/Windows/MainWindow.cpp

@@ -1409,7 +1409,7 @@ namespace ScriptCanvasEditor
         AZ::Outcome<ScriptCanvasEditor::SourceHandle, AZStd::string> outcome = LoadFromFile(fullPath);
         if (!outcome.IsSuccess())
         {
-            QMessageBox::warning(this, "Invalid Source File", QString("'%1' is not a valid file path.").arg(fullPath), QMessageBox::Ok);
+            QMessageBox::warning(this, "Invalid Source File", QString("'%1' failed to load properly.").arg(fullPath), QMessageBox::Ok);
             m_errorFilePath = fullPath;
             AZ_Warning("ScriptCanvas", false, "Unable to open file as a ScriptCanvas graph: %s", fullPath);
             return;

Gems/ScriptCanvas/Code/Editor/View/Windows/Tools/UpgradeTool/Controller.cpp

@@ -165,7 +165,7 @@ namespace ScriptCanvasEditor
             {
                 int result = QMessageBox::No;
                 QMessageBox mb
-                (QMessageBox::Warning
+                    ( QMessageBox::Warning
                     , QObject::tr("Failed to Save Upgraded File")
                     , QObject::tr("The upgraded file could not be saved because the file is read only.\n"
                         "Do you want to make it writeable and overwrite it?")

Gems/ScriptCanvas/Code/Editor/View/Windows/Tools/UpgradeTool/FileSaver.cpp

@@ -221,10 +221,16 @@ namespace ScriptCanvasEditor
             {
                 auto streamer = AZ::Interface<AZ::IO::IStreamer>::Get();
                 AZ::IO::FileRequestPtr flushRequest = streamer->FlushCache(source.Path().c_str());
-                streamer->SetRequestCompleteCallback(flushRequest, [this, source]([[maybe_unused]] AZ::IO::FileRequestHandle request)
+                streamer->SetRequestCompleteCallback(flushRequest, [this]([[maybe_unused]] AZ::IO::FileRequestHandle request)
                 {
-                    this->OnSourceFileReleased(source);
+                    AZStd::lock_guard<AZStd::mutex> lock(m_mutex);
+                    if (!m_sourceFileReleased)
+                    {
+                        m_sourceFileReleased = true;
+                        AZ::SystemTickBus::QueueFunction([this]() { this->OnSourceFileReleased(m_source); });
+                    }
                 });
+
                 streamer->QueueRequest(flushRequest);
             }
         }

Gems/ScriptCanvas/Code/Editor/View/Windows/Tools/UpgradeTool/FileSaver.h

@@ -33,6 +33,9 @@ namespace ScriptCanvasEditor
             void Save(const SourceHandle& source);
 
         private:
+            AZStd::mutex m_mutex;
+
+            bool m_sourceFileReleased = false;
             SourceHandle m_source;
             AZStd::function<void(const FileSaveResult& result)> m_onComplete;
             AZStd::function<bool()> m_onReadOnlyFile;