When I use the VEX Cad library and the add-in and modify the length of a 3x aluminium C Channel, a bug occurs as attached below. (Only the black dots in each hole are removed, but not the metal)
However, other parts like the 5x aluminium C channel, 5x aluminium plate, and more can be modified normally. Is this some bug or is there something that I might have missed? Many thanks.