this part contains feature that cannot be unbent

Hello guys, I am having problem with unbending parts. I cannot be unbent. Every time when I hit flattpatern button it say that this part contains feature that cannot be unbent, Anyone solve this flatpattern problem?

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I just change the bend orders, thats all. now thw part is flatten.

Message was edited by: Sinan Erhan

SolidworksSheet Metal