### 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
} else {
						grid_color = cell % primary_grid_steps == 0 ? primary_grid_color : secondary_grid_color;
					}
					viewport->draw_line(Point2(i, 0), Point2(i, viewport_size.height), grid_color, Math::round(EDSCALE));
				}
				last_cell = cell;
			}
		}
		if (grid_step.y != 0) {
			for (int i = 0; i < viewport_size.height; i++) {
				const int cell =
						Math::fast_ftoi(Math::floor((xform.xform(Vector2(0, i)).y - real_grid_offset.y) / (grid_step.y * Math::pow(2.0, grid_step_multiplier))));
				if (i == 0) {
					last_cell = cell;
				}
				if (last_cell != cell) {
					Color grid_color;
					if (primary_grid_steps == 0) {
						grid_color = secondary_grid_color;
					} else {
						grid_color = cell % primary_grid_steps == 0 ? primary_grid_color : secondary_grid_color;
					}
					viewport->draw_line(Point2(0, i), Point2(viewport_size.width, i), grid_color, Math::round(EDSCALE));
				}
				last_cell = cell;
			}
		}
	}
}
void CanvasItemEditor::_draw_ruler_tool() {