ondestroy: Uncaught exception java/lang/IllegalArgumentException: KuixCanvas not initialized.

I'm trying out the lates application and then closing app in and calling Dwayze.getDefault().destroyImpl();

result in following error:

java.lang.ArrayIndexOutOfBoundsException: 1 >= 0
Uncaught exception java/lang/IllegalArgumentException: KuixCanvas not initialized.
        at java.util.Vector.removeElementAt(Vector.java:511)
        at org.kalmeo.util.worker.Worker.run(Worker.java:148)