Instead of stopping playback in play mode the computer keyboard space bar repeats what my mouse just clicked on only when I click on the activate button left of the VST of both my waves rhapsody and halion se. Space button will just click it on and off and not play or stop. I also have noticed that on my other Dorco files that use Kontakt - that the activate button does absolutely nothing and will play regardless if it is on or not.
That just happens because that button still has keyboard focus,so space bar will invoke it. Click on something else such as the window background and the space bar should work as expected.