Submitting this because I dont have the time (or resources) to debug this atm and need a self-reminder:
On Win32 walletpassphrase does not appear to relock after the designated amount of time as it should and as it does on Linux.
Can someone check this on OSX as well?

{
        CWallet wallet(m_node.chain.get(), "", m_args, CreateDummyWalletDatabase());
        {
            LOCK(wallet.cs_wallet);
            wallet.SetWalletFlag(WALLET_FLAG_DESCRIPTORS);
            wallet.SetLastBlockProcessed(m_node.chainman->ActiveChain().Height(), m_node.chainman->ActiveChain().Tip()->GetBlockHash());
        }
        AddKey(wallet, coinbaseKey);
        WalletRescanReserver reserver(wallet);
        reserver.reserve();
        CWallet::ScanResult result = wallet.ScanForWalletTransactions({} , 0 , {} , reserver, false );
        BOOST_CHECK_EQUAL(result.status, CWallet::ScanResult::FAILURE);
        BOOST_CHECK(result.last_failed_block.IsNull());
        BOOST_CHECK(result.last_scanned_block.IsNull());
        BOOST_CHECK(!result.last_scanned_height);
        BOOST_CHECK_EQUAL(GetBalance(wallet).m_mine_immature, 0);
    }
    
    
    {
        CWallet wallet(m_node.chain.get(), "", m_args, CreateDummyWalletDatabase());
        {
            LOCK(wallet.cs_wallet);
            wallet.SetWalletFlag(WALLET_FLAG_DESCRIPTORS);
            wallet.SetLastBlockProcessed(m_node.chainman->ActiveChain().Height(), m_node.chainman->ActiveChain().Tip()->GetBlockHash());
        }
        AddKey(wallet, coinbaseKey);
        WalletRescanReserver reserver(wallet);
        reserver.reserve();
        CWallet::ScanResult result = wallet.ScanForWalletTransactions(oldTip->GetBlockHash(), oldTip->nHeight, {} , reserver, false );