### 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
rotate_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/rotate_mode", TTR("Rotate Mode"), Key::E));
	rotate_button->set_shortcut_context(this);
	rotate_button->set_tooltip_text(TTR("Rotate Mode"));
	scale_button = memnew(Button);
	scale_button->set_flat(true);
	main_menu_hbox->add_child(scale_button);
	scale_button->set_toggle_mode(true);
	scale_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_button_tool_select).bind(TOOL_SCALE));
	scale_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/scale_mode", TTR("Scale Mode"), Key::S));
	scale_button->set_shortcut_context(this);
	scale_button->set_tooltip_text(TTR("Shift: Scale proportionally."));
	main_menu_hbox->add_child(memnew(VSeparator));
	list_select_button = memnew(Button);
	list_select_button->set_flat(true);
	main_menu_hbox->add_child(list_select_button);
	list_select_button->set_toggle_mode(true);
	list_select_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_button_tool_select).bind(TOOL_LIST_SELECT));
	list_select_button->set_tooltip_text(TTR("Show list of selectable nodes at position clicked."));
	pivot_button = memnew(Button);
	pivot_button->set_flat(true);
	main_menu_hbox->add_child(pivot_button);
	pivot_button->set_toggle_mode(true);
	pivot_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_button_tool_select).bind(TOOL_EDIT_PIVOT));
	pivot_button->set_tooltip_text(TTR("Click to change object's rotation pivot."));
	pan_button = memnew(Button);
	pan_button->set_flat(true);
	main_menu_hbox->add_child(pan_button);
	pan_button->set_toggle_mode(true);
	pan_button->connect("pressed", callable_mp(this, &CanvasItemEditor::_button_tool_select).bind(TOOL_PAN));
	pan_button->set_shortcut(ED_SHORTCUT("canvas_item_editor/pan_mode", TTR("Pan Mode"), Key::G));