Bond transactions from Schwab appear in Online Center not in Register

I've had Schwab accounts in Quicken forever and have never seen the issue you're describing.  The worst Schwab does for me is download a maturing bond transaction as a deposit rather than a 'sale' - and thus not clearing the holding from the Quicken portfolio.  (I have to edit every such deposit and change it to a sale of the corresponding fixed income security to make things work out.  This is entirely a Schwab issue as they format the data that is sent to Quicken.)

You might check your Schwab account online on the Realized Gain/Loss tab to see if these sales appear fully there yet.  The thing with selling municipals is that the cost basis is amortized from purchase through the maturity date to reach a basis of 100 at that date, with zero capital gain if held to maturity.  If sold prior to maturity, and their systems aren't updating amortized basis daily (my experience is that Schwab does not do so) - then it may take time for the back office to compute the gain/loss amount.  Very different than selling stocks due to this amortization thing.  Maybe they only clear things at the end of month for sold munis.   I've only held to maturity so no personal experience with Schwab on that.

Again, check your online realized G/L for these sales.  If final numbers with no footnotes appear there, then perhaps call the Fixed Income Department number to raise the issue as, again, what Quicken gets from Schwab is entirely determined by Schwab themselves.