### 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
// Draw a line going through the whole screen from a vector
	RID ci = viewport->get_canvas_item();
	Vector<Point2> points;
	Point2 from = transform.xform(p_from);
	Point2 to = transform.xform(p_to);
	Size2 viewport_size = viewport->get_size();
	if (to.x == from.x) {
		// Vertical line
		points.push_back(Point2(to.x, 0));
		points.push_back(Point2(to.x, viewport_size.y));
	} else if (to.y == from.y) {
		// Horizontal line
		points.push_back(Point2(0, to.y));
		points.push_back(Point2(viewport_size.x, to.y));
	} else {
		real_t y_for_zero_x = (to.y * from.x - from.y * to.x) / (from.x - to.x);
		real_t x_for_zero_y = (to.x * from.y - from.x * to.y) / (from.y - to.y);
		real_t y_for_viewport_x = ((to.y - from.y) * (viewport_size.x - from.x)) / (to.x - from.x) + from.y;
		real_t x_for_viewport_y = ((to.x - from.x) * (viewport_size.y - from.y)) / (to.y - from.y) + from.x; // f
		//bool start_set = false;
		if (y_for_zero_x >= 0 && y_for_zero_x <= viewport_size.y) {
			points.push_back(Point2(0, y_for_zero_x));
		}
		if (x_for_zero_y >= 0 && x_for_zero_y <= viewport_size.x) {
			points.push_back(Point2(x_for_zero_y, 0));
		}
		if (y_for_viewport_x >= 0 && y_for_viewport_x <= viewport_size.y) {
			points.push_back(Point2(viewport_size.x, y_for_viewport_x));