Hi yorik1984!
First of all, thank you very much for the plugin! It helps a lot!
The only time I have encountered a problem was with a test of a "worst case scenario" of mine (I'm developing a spreadsheet to use the data from sketchup).
I tried with two times of "component groups", making them as a new component and the other time using Component Groups. Your plugin worker just as expected when I make new components, but it failed when I use groups 