Using Spark 1.6.1 (plugin versions (64bit, Live 9)) isn't working nice while using the GUI on screen only.
Everytime I click on a button on the GUI, the button I clicked before is triggered again - 2nd click is normal state.
The same with EVERY button or slider of Spark!
This problem was not at the version before.
standalone version is working without the problems.
btw. playing Spark via the hardware is working as expected!!