Storyline 360: Change State Drop Correct Issue

Situation:  I am creating a drag and drop feature (moving a resume document into a file folder).  I am following the ice cream lesson provided at the following link: https://articulate.com/support/article/Articulate-Storyline-360-Creating-a-Drag-and-Drop-Interaction

My resume document is a grouped image, and when the user moves it over the folder, the folder opens, and when the user drops it on the folder the resume is suppose to disappear, but it doesn't.

Question:  Do drop correct states work with grouped objects? When I created the drop correct state, I deleted the object image so that it is invisible in this state (visible in the normal state), but when I preview, the resume document just drops on top of the folder and doesn't disappear.  What am I doing wrong?