We aren’t experiencing any issue with UE 4.19.2 on our end, so one possibility is that you’ve had something change on your system that affects the prerequisites required for Unreal Studio.
You can try re-running the prerequisite installer from the UE4 installation directory:
\Epic Games\UE_4.19\Engine\Extras\Redist\en-us\UE4PrereqSetup_x64.exe
There are two installers, but x64 is the most commonly used. The installer may have you step through an uninstall first before it reinstalls.