https://github.com/bitcoin/bitcoin/blob/d72758c3f6c34cd835f5de3efc230964f3b1ea56/src/torcontrol.cpp#L539

If a user is running Tor proxy outside localhost (perhaps on other host inside LAN or in containerised environment) , the automatic creation of onion services ends up creating an onion service listening to hardcored 127.0.0.1 address on the Tor proxy's host instead of the private address of the bitcoind – effectively running an empty onion service listening the Tor proxy's localhost.
X(nStartingHeight);
    {
        LOCK(cs_vSend);
        X(mapSendBytesPerMsgCmd);
        X(nSendBytes);
    }
    {
        LOCK(cs_vRecv);
        X(mapRecvBytesPerMsgCmd);
        X(nRecvBytes);
    }
    X(m_legacyWhitelisted);
    X(m_permissionFlags);
    if (m_tx_relay != nullptr) {
        LOCK(m_tx_relay->cs_feeFilter);
        stats.minFeeFilter = m_tx_relay->minFeeFilter;
    } else {
        stats.minFeeFilter = 0;
    }
    
    
    
    
    
    
    std::chrono::microseconds ping_wait{0};
    if ((0 != nPingNonceSent) && (0 != m_ping_start.load().count())) {
        ping_wait = GetTime<std::chrono::microseconds>() - m_ping_start.load();
    }