i have an body that has two "hooks", i made one side, then copied that one to the other position, when i merge the original one to the base body it merges perfectly.
but when i try to merge the copy, it leaves a small vertical seam that i can't delete with anything:
the bodies i'm merging are body8 as tool and body1 as tool(the "hook"), i inspected to check for distance, but the inspect tools shows 0.00mm between the faces.
Tried:
overlapping 1mm the objects, same, it leaves a seam.
trying to extrude a rectangle on that side face, it doesn't let me extrude or delete the line either
