Hey Pandako, I believe you will have to update. According to my tests here in the next version, this extension stops working.
Even if I change it to (0,1,2,3,4...) nothing works.
And when adding BEHAVIOR, those numbers that are there appear.
It's just that I do tests of Builds that will be released and so I look for bugs and other things, and when I saw this bug I decided to let you know.. However. If you are going to modify the code, would it be possible for you to add a way to generate the objects through the layer name (the tiled) instead of the Number?