Rattle from replacement Power Tonneau

[Sgt Beavis]

My powered tonneau was replaced last Wednesday. The next day, I noticed a very significant rattle coming from the back of the truck. After some quick checking I found that the rattle only occurs when the tonneau is in the closed position. If I completely open it up, there is no rattle at all. I’m thinking that it’s either the spring mechanism or there is an actual loose component in there. I’ve lightly tapped on the panels themselves and haven’t noticed any give that would cause the noise.

Has anyone else noticed this? Any thoughts on how to dive deeper into this without disassembling anything?
Thanks.

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