Hi,
we can not longer render vieports with vwx2019 SP2.
The process is normal, the image is created and becomes black at the end.
Graphics drivers are up-to-date, even with old drivers tested, is also turns black at the end.
In VWX 2018 on the same machine and with the same settings it runs with correctly.
Attached 2 screenshots during rendering and a vwx file
test render vieport.vwx