We advise all customers using Windows 10 64-bit (1909 build) to not install KB5001337.
The update is causing issues with scrollbars that will impact performance of FlightPRO®.
If you have already installed this, uninstall it to fix the missing scroll bars or, if possible, upgrade to a later release of Windows 10.
We will provide an update when we know that Microsoft have fixed or patched this problem.
Please contact your account manager if you require any further information