I recently had to revalidate the Quicken Connect download info (including MFA) for a "Pershing Investments (66786)" account. Pershing seems to require this every four months which I appreciate. However, this last time, Quicken no longer obeys Pershing's "Remember my device" feature and I'm needing to revalidate with an MFA code upon every Quicken-initiated download.
Quicken developers/support may already be aware of this while working Ticket #11991654/CTP-14800, but my issue wasn't specifically mentioned in the ticket so I'm just mentioning it here.