Thread: cant close the razor

Hi
I got a problem with closing some of my straight razors in a 7 day set. It seems that the wedge (is that the right word for the black thing?) is to long on some of my razors so the blade cant be folded into the scales. On the pictures you can see one blade without a problem and one that cant be folded.
Can it be manufacturing errors? seems strange that the passed a control. Can the bone scales shrink after drying for some years?
What do you think i should do to fix it? just try to remove some material from the black plastic piece?
Its heljestrand MK n31 razors, 3 of 7 razors got this problem.
Thank you for your help
/Calle