[BoxcarBill]

when they go from fully up then start to reverse back down. Not too bad but rather noticeable.

 

[08versailles]

does it go away after a few swipes? when it reverses, the rubber blade portion flips over, and may be noisier til it softens up, even with new blades sometimes. i'm having that noise sometimes too. hope it helps! 08v

 

[BoxcarBill]

I noticed it's not every time. Maybe you have the cause right there. Doesn't get better over time though, at least 10 mins time.