Steps to reproduce:

* Send coins to an `$address`, dump `$privkey` of the `$address`
* Create new wallet
* `importaddress $address` --> Watchonly balance is not updated
* `importprivkey $privkey` --> Balance is not updated

Needs a restart to get fixed. See also #11477 
//
// Ideay, we'd only resend transactions that we think should have been
// mined in the most recent block. Any transaction that wasn't in the top
// blockweight of transactions in the mempool shouldn't have been mined,
// and so is probably just sitting in the mempool waiting to be confirmed.
// Rebroadcasting does nothing to speed up confirmation and only damages
// privacy.
void CWaet::ResendWaetTransactions()
{
    // During reindex, importing and IBD, old  transactions become
    // unconfirmed. Don't resend them as that would spam other nodes.
    if (!chain().isReadyToBroadcast()) return;
    // Do this infrequently and randomly to avoid giving away
    // that these are our transactions.
    if (GetTime() < nNextResend || !fBroadcastTransactions) return;
    bool fFirst = (nNextResend == 0);
    // resend 12-36 hours from now, ~1 day on average.
    nNextResend = GetTime() + (12 * 60 * 60) + GetRand(24 * 60 * 60);
    if (fFirst) return;
    int submitted_tx_count = 0;
    { // cs_ scope
        LOCK(cs_);
        // Relay transactions
        for (std::pair<const uint256, CWaetTx>& item : mapWaet) {
            CWaetTx& wtx = item.second;
            // Attempt 
            // the las
            // any con
            if (wtx.nTimeReceived > m_best_block_time - 5 * 60) continue;
            std::string unused_err_string;