### 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
#include "canvas_item_editor_plugin.h"
#include "core/config/project_settings.h"
#include "core/input/input.h"
#include "core/os/keyboard.h"
#include "editor/debugger/editor_debugger_node.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
#include "editor/editor_toaster.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/editor_zoom_widget.h"
#include "editor/plugins/animation_player_editor_plugin.h"
#include "editor/plugins/script_editor_plugin.h"
#include "editor/scene_tree_dock.h"
#include "scene/2d/cpu_particles_2d.h"
#include "scene/2d/gpu_particles_2d.h"
#include "scene/2d/light_2d.h"
#include "scene/2d/polygon_2d.h"
#include "scene/2d/skeleton_2d.h"