Cannot scrap duplicate weapon skin

Hey guys,

I recently got a second Half-moon Dagger skin and i wanted to scrap both of them because i dont use them,
when i went to the scrap screen tho and clicked the half moon dagger i could only add it once even tho i have two and theyre not in use by any character.

Is there a fix to this?
Thanks guys for the help in advance

Screenshots showing i have two of them but can only use one in scrap: