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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.
A post was merged into an existing topic: [REPORTED] World Update 3 has broken flight dynamics, exhibit A
I have added your comment to the end of that bug report:
The best place to put a report like that is in Bugs & Issues and not General Discussion.