### 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
if (tool != TOOL_RULER) {
		return;
	}
	if (ruler_tool_active) {
		Color ruler_primary_color = get_theme_color(SNAME("accent_color"), SNAME("Editor"));
		Color ruler_secondary_color = ruler_primary_color;
		ruler_secondary_color.a = 0.5;
		Point2 begin = (ruler_tool_origin - view_offset) * zoom;
		Point2 end = snap_point(viewport->get_local_mouse_position() / zoom + view_offset) * zoom - view_offset * zoom;