@Quicken Chris posted a link this afternoon to this support article listing the known issues with the new Schwab connection / download process:
https://www.quicken.com/support/charles-schwab-transaction-download-changesOne of the known issues is the inability by some of us to Deactivate partially connected Schwab brokerage accounts so that we can re-authorize/re-connect them. For us, the Deactivate button in the Online Services tab of the Account Details dialog (>Edit Account) does nothing - it asks if we'd like to deactivate, we say 'yes', and nothing happens.
The support article above says that we can wait a few days for a patch - or can download the R36.45 patch from a link in the article.
For me, the R36.45 patch (which is actually a full installation of Quicken - uninstalling the existing version) is no improvement. Cannot deactivate Schwab accounts ... which aren't connected in the first place.
Wanted to post to save others grief. On the other hand, it would be good for at least one or two people who are also unable to deactivate to see if they have the same experience... :-)