Hi! We are a team meddling with VP based in Greece and we might be able to help you.
i have used VirtualCamera in UE4 including and up to 4.27.2 so i may be able to help you. As an overview and from memory i do not recall any issue using it although i cannot tell you if i learnt from the UE documentation or from a tut on youtube.
Generally you need to
i.add the virtualCameraActor (is this the one you are using?)
ii.enable it (it is a checkbox close to the top of the ‘Details’ panel of the VCam component and
iiI. connect it to the live link for the transform (just below the ‘Enable’ checkbox mentioned above.
this is the very high level overview - if you still have problems give us a shout!
David.