RegQueryValueEx returning TRANSACTION_REQUEST_NOT_VALID for valid data about winsafe HOT 6 CLOSED

fn main() {
	use winsafe::{self as w, prelude::*, co};

	let hkey = w::HKEY::CURRENT_USER.RegOpenKeyEx(
		Some("Control Panel\\Mouse"),
		co::REG_OPTION::default(),
		co::KEY::READ,
	).unwrap();

	let val = hkey.RegQueryValueEx(Some("Beep")).unwrap();

	match val {
		w::RegistryValue::Dword(n) => println!("Number u32: {}", n),
		w::RegistryValue::Qword(n) => println!("Number u64: {}", n),
		w::RegistryValue::Sz(s) => println!("String: {}", s),
		w::RegistryValue::ExpandSz(s) => {
			println!("Env string: {}", w::ExpandEnvironmentStrings(&s).unwrap());
		},
		w::RegistryValue::MultiSz(strs) => {
		println!("Multi string:");
		for s in strs.iter() {
			print!("[{}] ", s);
		}
		println!("");
		},
		w::RegistryValue::Binary(bin) => {
			println!("Binary:");
			for b in bin.iter() {
				print!("{:02x} ", b);
			}
			println!("");
		},
		w::RegistryValue::None => println!("No value"),
	}
}