### 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
key_loc_button->set_toggle_mode(true);
	key_loc_button->set_pressed(true);
	key_loc_button->set_focus_mode(FOCUS_NONE);
	key_loc_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_popup_callback).bind(ANIM_INSERT_POS));
	key_loc_button->set_tooltip_text(TTR("Translation mask for inserting keys."));
	animation_hb->add_child(key_loc_button);
	key_rot_button = memnew(Button);
	key_rot_button->set_flat(true);
	key_rot_button->set_toggle_mode(true);
	key_rot_button->set_pressed(true);
	key_rot_button->set_focus_mode(FOCUS_NONE);
	key_rot_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_popup_callback).bind(ANIM_INSERT_ROT));
	key_rot_button->set_tooltip_text(TTR("Rotation mask for inserting keys."));
	animation_hb->add_child(key_rot_button);
	key_scale_button = memnew(Button);
	key_scale_button->set_flat(true);
	key_scale_button->set_toggle_mode(true);
	key_scale_button->set_focus_mode(FOCUS_NONE);
	key_scale_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_popup_callback).bind(ANIM_INSERT_SCALE));
	key_scale_button->set_tooltip_text(TTR("Scale mask for inserting keys."));
	animation_hb->add_child(key_scale_button);
	key_insert_button = memnew(Button);
	key_insert_button->set_flat(true);
	key_insert_button->set_focus_mode(FOCUS_NONE);
	key_insert_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_popup_callback).bind(ANIM_INSERT_KEY));
	key_insert_button->set_tooltip_text(TTR("Insert keys (based on mask)."));
	key_insert_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/anim_insert_key", TTR("Insert Key"), Key::INSERT));
	key_insert_button->set_shortcut_context(this);
	animation_hb->add_child(key_insert_button);
	key_auto_insert_button = memnew(Button);