[Verb Coin] Each verb only works once

I have now completed the verb Coin Interface after the video below. Also works, but only once per verb. Have tried different objects, once I've used a verb, it will not work again. I've added a simple print ("look") to the left-click action of my look command. Runs the first time, then no longer. So it seems the LeftClick Action is not running anymore - but why? The character does not even go to the position defined for the object.