### 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 (is_alt && !_only_packed_scenes_selected()) {
		_show_resource_type_selector();
	} else {
		_perform_drop_data();
	}
}
Node *CanvasItemEditorViewport::_make_texture_node_type(String texture_node_type) {
	Node *node = nullptr;
	if (texture_node_type == "Sprite2D") {
		node = memnew(Sprite2D);
	} else if (texture_node_type == "PointLight2D") {
		node = memnew(PointLight2D);
	} else if (texture_node_type == "CPUParticles2D") {
		node = memnew(CPUParticles2D);
	} else if (texture_node_type == "GPUParticles2D") {
		node = memnew(GPUParticles2D);
	} else if (texture_node_type == "Polygon2D") {
		node = memnew(Polygon2D);
	} else if (texture_node_type == "TouchScreenButton") {
		node = memnew(TouchScreenButton);
	} else if (texture_node_type == "TextureRect") {
		node = memnew(TextureRect);
	} else if (texture_node_type == "TextureButton") {
		node = memnew(TextureButton);
	} else if (texture_node_type == "NinePatchRect") {
		node = memnew(NinePatchRect);
	}
	return node;
}
void CanvasItemEditorViewport::_update_theme() {