Drag-and-drop order: even if the answer is correct, Storyline thinks it's incorrect

Nico,

See the attached screenshot. In this scenario the incorrect layer will show although everything seems to be in the correct order. The response 2 is also correct but what happened is that I never moved it from its original position,  I never actually dropped it , because I thought it looked good and correct from the beginning. Needless to say, it's still in Normal state. Same goes for any other response that kept its original position when the interaction is submitted.