Drag & Drop object disappear when hits correct target

[adobe5505]

I have created a drag and drop interaction. The interaction is set for when correct answers are made then it advances to the next slide. The interaction works fine, then when I relocate the drop targets to another area on the slide because I am switching up the design on the slide, one of the drop targets disappears every time it hits the correct target. If I relocate the target back to the original position it still works fine. The size and snap location and everything remains the same. Has anyone ever experienced anything similar to this?

[Lilybiri]

For HTML output? Yes, I had a similar experience and couldn't figure out why it happened. Look at this blog post

https://elearning.adobe.com/2017/08/built-in-states-for-dragdrop-objects/

It has a link to a published interactive (rescalable) tutorial about Drag&Drop.  Watch that tutorial: in the second example (with the balls) the ball '4', which is a drag source, disappears mysteriously when dragging it to any drop target. 

No solution, didn't try to recreate that slide which could have fixed the problem.