### 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
set_global_position(p_point);
}
void Control::set_global_position(const Point2 &p_point, bool p_keep_offsets) {
	ERR_MAIN_THREAD_GUARD;
	Transform2D inv;
	if (data.parent_canvas_item) {
		inv = data.parent_canvas_item->get_global_transform().affine_inverse();
	}
	set_position(inv.xform(p_point), p_keep_offsets);
}
Point2 Control::get_global_position() const {
	ERR_READ_THREAD_GUARD_V(Point2());
	return get_global_transform().get_origin();
}
Point2 Control::get_screen_position() const {
	ERR_READ_THREAD_GUARD_V(Point2());
	ERR_FAIL_COND_V(!is_inside_tree(), Point2());
	return get_screen_transform().get_origin();
}
void Control::_set_size(const Size2 &p_size) {
#ifdef DEBUG_ENABLED
	if (data.size_warning && (data.anchor[SIDE_LEFT] != data.anchor[SIDE_RIGHT] || data.anchor[SIDE_TOP] != data.anchor[SIDE_BOTTOM])) {
		WARN_PRINT("Nodes with non-equal opposite anchors will have their size overridden after _ready(). \nIf you want to set size, change the anchors or consider using set_deferred().");
	}
#endif
	set_size(p_size);
}
void Control::set_size(const Size2 &p_size, bool p_keep_offsets) {