VariAudio- notes don't snap to pitch quantize- Cubase 64bit

In Cubase Pro 8.5.20 64bit when using VariAudio, notes don’t snap to exact pitches when moving them with a mouse. Rather, they move up or down by a half-tone staying out of tune with whatever note they are moved to. In 32bit version of Cubase Pro 8.5.20 notes snap to pitch as they should. This is clearly a bug.