### 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(false);
	if (data.forward_can_drop.is_valid()) {
		Variant ret;
		Variant p = p_point;
		const Variant *vp[2] = { &p, &p_data };
		Callable::CallError ce;
		data.forward_can_drop.callp((const Variant **)vp, 2, ret, ce);
		if (ce.error != Callable::CallError::CALL_OK) {
			ERR_FAIL_V_MSG(Variant(), "Error calling forwarded method from 'can_drop_data': " + Variant::get_callable_error_text(data.forward_can_drop, (const Variant **)vp, 2, ce) + ".");
		}
		return ret;
	}
	bool ret = false;
	GDVIRTUAL_CALL(_can_drop_data, p_point, p_data, ret);
	return ret;
}
void Control::drop_data(const Point2 &p_point, const Variant &p_data) {