Hi Nicolas,
First of all, I recommend that you always use Aliases for objects identification. In this case, you won't have to modify all your scripts if some properties or even the object hierarchy changes in your application.
As for the click problem, it can be caused by the fact that the full name and the mapped name actually refer to different objects. I recommend that you set a breakpoint on the problematic line and compare properties of the two objects thoroughly. Also, try highlighting both objects on screen and make sure the browser zoom is set to 100% in your system.
