I'll check the date if needed, but I get the following message when trying to open up my Osterhase Easter game:

   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at TextAdventures.Quest.EditorControls.WFEditorTree.SetMenuEnabled(String key, Boolean enabled)
   at TextAdventures.Quest.Editor.UpdateClipboardButtons()
   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)

At this point, I cannot edit. Let me know. Thanks in advance!

Bumping this...

It is not just older projects, but every project. I tried to open X3 to work on it and it gives the same errors above. Cannot do anything once the editor loads. Also noticed that on the issue tracker on github, others had a similar issue. It did happen after the update.

Please advice ASAP.

This looks a lot like a glitch that previously occurred with registry corruption. Does uninstalling and reinstalling Quest make a difference?

The editor's UI code is very fragile; but I don't know C# well enough to thing about submitting patches.

Reinstalled. Still no luck.

UPDATE: Uinstalled and reinstalled again. Now I am up and running. Thanks.