### 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
container->add_child(child_container);
		label = memnew(Label);
		label->set_text(TTR("Primary Line Every:"));
		label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
		child_container->add_child(label);
		primary_grid_steps = memnew(SpinBox);
		primary_grid_steps->set_min(0);
		primary_grid_steps->set_step(1);
		primary_grid_steps->set_max(100);
		primary_grid_steps->set_allow_greater(true);
		primary_grid_steps->set_suffix(TTR("steps"));
		primary_grid_steps->set_h_size_flags(Control::SIZE_EXPAND_FILL);
		primary_grid_steps->set_select_all_on_focus(true);
		child_container->add_child(primary_grid_steps);
		container->add_child(memnew(HSeparator));
		
		
		child_container = memnew(GridContainer);
		child_container->set_columns(2);
		container->add_child(child_container);
		label = memnew(Label);
		label->set_text(TTR("Rotation Offset:"));
		child_container->add_child(label);
		label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
		rotation_offset = memnew(SpinBox);
		rotation_offset->set_min(-SPIN_BOX_ROTATION_RANGE);
		rotation_offset->set_max(SPIN_BOX_ROTATION_RANGE);
		rotation_offset->set_suffix("deg");
		rotation_offset->set_h_size_flags(Control::SIZE_EXPAND_FILL);
		rotation_offset->set_select_all_on_focus(true);