Deconstruct Brep is duplicating faces

A quick check of baking the breps before they go into the debrep component and exploding them in rhino shows that each brep already had 2 faces prior to the debrep component.

The fix is easy, just insert a list item component as shown highlighted in blue here.

Not to beat a dead horse, but you would have gotten an answer faster if you had posted a file initially. How to ask effective questions