Weldment appearence

Hello

Is there a known bug regarding weldments with applied materials and appearences?

I have made a cut extrude through a weldment, and it changes appearence to the default SW gray.

The rest of the weldments have kept their appearences. I tried to copy and paste the appearence of an identical part, but

the part looses the appearence after a rebuild. The part only looses the appearence, not the material it self.

Is there a way around this?

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