### 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
data.theme_owner = memnew(ThemeOwner);
}
Control::~Control() {
	memdelete(data.theme_owner);
	
	for (KeyValue<StringName, Ref<Texture2D>> &E : data.theme_icon_override) {
		E.value->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
	}
	for (KeyValue<StringName, Ref<StyleBox>> &E : data.theme_style_override) {
		E.value->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
	}
	for (KeyValue<StringName, Ref<Font>> &E : data.theme_font_override) {
		E.value->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
	}
	
	data.theme_icon_override.clear();
	data.theme_style_override.clear();
	data.theme_font_override.clear();
	data.theme_font_size_override.clear();
	data.theme_color_override.clear();
	data.theme_constant_override.clear();
}