Advanced Fill in the blanks

Hi,

It's a great feature to give a response to the user in case of a wrong answer and therefore highligthing a part of the text as a hint. But this works in my exercise only with one (the first) blank; all other defined highlights ("Hervorhebungen" in the german translation) dont't work; the hint is always placed above the blank.

I worked with "lists" for the blanks.

Is this a known bug?

Thanks!

G_71