Need help- how to add different feedback to six drag and drop interactions on one slide.

The problem is the way the Drop Correct state was created. You put the assemble object and the Correct text box where you want them to be when the rectangle is dropped. You can see the problem with that by editing the assemble object. Go to the Drop Correct state, select the red pentagon, and click on Drawing Tools FORMAT on the ribbon. You will see that the X position of the red pentagon is over 600. That means when the assemble object changes to Dropped Correct state, the red pentagon will be 600 pixels to the right of where the original object was dropped. You need to move it so both the X and Y values are 0. Then when the state changes, it will appear where it is dropped.

Also, it appears that you edited the original state, made a Dropped Correct state, copied the original, pasted it and changed its color. The problem with that is that it also copied the entrance animation. So you drop the object, it disappears, and then animates on. While editing the assemble object, I went to Drop Correct state, copied the red pentagon, cut it, exited editing, and pasted it on the base. There I could remove the entrance animation, copy it, edit the assemble state, and paste the red pentagon.

I think you want the text box to appear, pause, then be animated off. That's a little more than a state will handle, so I placed it on a layer.