Every time I open Quest and attempt to open a previous gamebook save, I get this error

System.NotSupportedException: No imaging component suitable to complete this operation was found. ---> System.Runtime.InteropServices.COMException: The component cannot be found. (Exception from HRESULT: 0x88982F50)
--- End of inner exception stack trace ---
at System.Windows.Media.Imaging.BitmapDecoder.SetupDecoderFromUriOrStream(Uri uri, Stream stream, BitmapCacheOption cacheOption, Guid& clsId, Boolean& isOriginalWritable, Stream& uriStream, UnmanagedMemoryStream& unmanagedMemoryStream, SafeFileHandle& safeFilehandle)
at System.Windows.Media.Imaging.BitmapDecoder.CreateFromUriOrStream(Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, RequestCachePolicy uriCachePolicy, Boolean insertInDecoderCache)
at System.Windows.Media.Imaging.BitmapImage.FinalizeCreation()
at System.Windows.Media.Imaging.BitmapImage.EndInit()
at TextAdventures.Quest.EditorControls.FileDropDown.RefreshFileList()
at TextAdventures.Quest.EditorControls.FileControl.Populate(IEditorData data)
at TextAdventures.Quest.EditorControls.ElementEditor.Populate(IEditorData data)
at TextAdventures.Quest.WPFElementEditor.Populate(IEditorData data)
at TextAdventures.Quest.Editor.ShowEditor(String key)
at TextAdventures.Quest.Editor.ctlTree_SelectionChanged(String key)
at TextAdventures.Quest.EditorControls.WFEditorTree.ChangeSelection(String key)
at TextAdventures.Quest.EditorControls.WFEditorTree.SelectCurrentTreeViewItem()
at TextAdventures.Quest.EditorControls.WFEditorTree.ctlTreeView_AfterSelect(Object sender, TreeViewEventArgs e)
at System.Windows.Forms.TreeView.OnAfterSelect(TreeViewEventArgs e)
at System.Windows.Forms.TreeView.TvnSelected(NMTREEVIEW* nmtv)
at System.Windows.Forms.TreeView.WmNotify(Message& m)
at System.Windows.Forms.TreeView.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Followed promptly by

System.Runtime.InteropServices.COMException (0x88982F50): The component cannot be found. (Exception from HRESULT: 0x88982F50)

This is probably because you have a corrupted image file in the same folder as your game. Go to the game folder (it will have the name of your game, inside “Quest games” folder), and move out every file except the one that ends .aslx (or the one with the Quest icon), then try opening again. If it opens, one of the files you moved was to blame. Move a few back at a time to see which one. Note that Quests will try to open all the image files in the folder when you open your game, whether used or not.