### 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_READ_THREAD_GUARD_V(SIZE_EXPAND_FILL);
	return data.h_size_flags;
}
void Control::set_v_size_flags(BitField<SizeFlags> p_flags) {
	ERR_MAIN_THREAD_GUARD;
	if ((int)data.v_size_flags == (int)p_flags) {
		return;
	}
	data.v_size_flags = p_flags;
	emit_signal(SceneStringNames::get_singleton()->size_flags_changed);
}
BitField<Control::SizeFlags> Control::get_v_size_flags() const {
	ERR_READ_THREAD_GUARD_V(SIZE_EXPAND_FILL);
	return data.v_size_flags;
}
void Control::set_stretch_ratio(real_t p_ratio) {
	ERR_MAIN_THREAD_GUARD;
	if (data.expand == p_ratio) {
		return;
	}
	data.expand = p_ratio;
	emit_signal(SceneStringNames::get_singleton()->size_flags_changed);
}
real_t Control::get_stretch_ratio() const {