The qwerty keyboard arrow keys work to scroll through patches in the browser ( feature added in version 1.0.5) but if you click on the keyboard at the bottom of Vital’s GUI to audition patches it breaks the arrow scrolling function.
Load Vital, Go to the Browser and use the qwerty keyboard arrows. They will scroll up/down the list of patches.
Click on the keyboard on the bottom of Vital’s GUI and the qwerty arrows no longer work to scroll patches until you manually select one by clicking on it in the browser window.
Windows 10 64 bit. It occurs in FL Studio, Cakewalk, and Reaper. VST 2 and 3 versions. 100% reproducible.