Avast Secureline VPN - Black Screen

As of updating to windows 10 I’ve been unable to use Secureline.

On launch, it’s just a black box. It still functions normally (I can move blindly through menus, as well as move/close the window normally from the top bar) but it has absolutely no display.

I’ve already tried multiple clean re-installs, and all my display drivers are up to date.

Was the VPN installed as part of the Antivirus program or, was SecureLine installed as a separate installation?