### Godot version

4.0 beta 10, mono edition

### System information

Windows 11

### Issue description

No matter what I do Project Camera Override can never detect a game instance.

![image](https://user-images.githubusercontent.com/13719743/209912444-541f642a-42d3-4860-a4e0-54a17dbbab0b.png)

Of relevance: I can see remote nodes. I can see the output in the console. I can see the output in my IDE of choice (Rider). I can toggle debug mode.

It's just the camera that is unable to detect the game instance.

### Steps to reproduce

This happens everywhere, including on a brand new projects where the only nodes are a 2d camera and the Godot svg icon for testing. This also seems to happen when not using Rider as a third party editor.

### Minimal reproduction project

N/A
bool still_selected = true;
	if (p_append && !editor_selection->get_selected_node_list().is_empty()) {
		if (editor_selection->is_selected(item)) {
			
			editor_selection->remove_node(item);
			still_selected = false;
			if (editor_selection->get_selected_node_list().size() == 1) {
				EditorNode::get_singleton()->push_item(editor_selection->get_selected_node_list()[0]);
			}
		} else {
			
			editor_selection->add_node(item);
		}
	} else {
		if (!editor_selection->is_selected(item)) {
			
			editor_selection->clear();
			editor_selection->add_node(item);
			
			if (Engine::get_singleton()->is_editor_hint()) {
				selected_from_canvas = true;
				EditorNode::get_singleton()->edit_node(item);
			}
		}
	}
	viewport->queue_redraw();
	return still_selected;
}
List<CanvasItem *> CanvasItemEditor::_get_edited_canvas_items(bool retrieve_locked, bool remove_canvas_item_if_parent_in_selection) {