I have a problem because I can’t handle nested elements.

I have the ability to drag an element from left menu to right container
and the ability to drag an element from the left menu to the Loop element. This works fine, but the moment I want to pull an element out of Loop or put an element from the right container into loop it does not work. problem also occurs when I want to change the order of the elements in the loop

I need to be able to change order in loop container and moving in/out items