Younes130FRP

so first of all, i am training mapping using offedit, when i do /mscale for an object, example: an object size is 1, i scaled the object for 2, when i scale it, a part of the object becomes penetrable, like i can pass trough the part of the object, but the original object size part i cant pass trough, i hope u understand what kind of problem i have, any solution or any command or any way?