### Godot version

4.1 dev2, 4.0.3

### System information

Windows 10, ryzen 5900x, radeon 6950xt (driver: 23.2.2)

### Issue description

There are two bugs:
- When I create a new node, it is created outside of the viewport. (as in first video)
- When I run the project, all the content inside the viewport dont appear. (as in second video)
I believe the second issue is related to the first.

Note: these problems are in RTL editors.

https://github.com/godotengine/godot/assets/121864036/84f0d434-0d1b-4c23-9fb0-510257e2e191


https://github.com/godotengine/godot/assets/121864036/b2bc20c7-1e2e-4d04-99e7-d66860ffced2




### Steps to reproduce

Videos explain.

### Minimal reproduction project

N/A
ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_COND(!is_inside_tree());
	ERR_FAIL_COND(p_data.get_type() == Variant::NIL);
	get_viewport()->_gui_force_drag(this, p_data, p_control);
}
void Control::set_drag_preview(Control *p_control) {
	ERR_MAIN_THREAD_GUARD;
	ERR_FAIL_COND(!is_inside_tree());
	ERR_FAIL_COND(!get_viewport()->gui_is_dragging());
	get_viewport()->_gui_set_drag_preview(this, p_control);
}
bool Control::is_drag_successful() const {
	ERR_READ_THREAD_GUARD_V(false);
	return is_inside_tree() && get_viewport()->gui_is_drag_successful();
}
void Control::set_focus_mode(FocusMode p_focus_mode) {