Cubase Pro 8 8.0.20 - Plugin GUI Issues

I am experiencing a repeated issue when using the Virtual Keyboard with Dark Planet.

The problem is as follows:

  1. Open Cubase Pro 8.
  2. Make a new track with Dark Planet loaded up.
  3. Make sure that the Virtual Keyboard is enabled.
  4. Playing the keys on the computer keyboard will cause the Dark Planets GUI to re-size.

Closing the plugin window and the re-opening it seems to resolve the issue until it happens again.

I am running Cubase Pro 8 v8.0.20 as a 64-bit app on Mac OS X 10.10.4 Yosemite.

Apple Mac Mini (Late 2012)
2.3GHz Intel Core i7 (Quad Core)
16GB RAM (1600MHz DDR3)
Intel HD Graphics 4000 1024 MB
1TB Internal HD
Lacie 320GB External 7200RPM HD

This (so far) has been happening at random. I cannot repeatedly make this happen.
Screen Shot 2015-07-28 at 11.48.17.jpg