Drag and Drop

I am just walking my first steps with H5P and I am really exhited about the possibilities. My first trial is a drag & drop question and I am just struggling about the number of results being showed at the end of the task. In my trial there are six draggables but the results never show more than five. You can try here - place 6 draggables in the dropzone and finally click "Überprüfen":

https://h5p.org/node/569517

As I couldn't find any hint to this limitation anywhere in the documentation: where is my mistake?
Thank you!

Hello there !

The drag and drop interactive is marking correct answers as incorrect. I've tested this a few times using all correct answers, some incorrect answers, and all incorrect answers. I keep getting the same result -- all incorrect. This is for the word drag and drop. I think I have it set up correctly with the answer between the asterisks. I also encountered a similar issue with the image drag and drop, but the image version doesn't allow for an item to be placed in the wrong area (incorrect box won't go into the drop zone, bounces back out to unsorted list area).