Apparently a new bug with the flight model was introduced with the latest update. The community managers have taken note of the issue and escalated it to the dev team. See here: [REPORTED] World Update 3 has broken flight dynamics, exhibit A - Bugs & Issues / Aircraft Systems - Microsoft Flight Simulator Forums
If you use the FBW A320, the issue has been fixed by their developers already. And the Working Title CJ4 so far has remained unaffected.