When adding a back splash to a countertop on a base sink counter, it extends past the countertop for some reason (in this specific case, it went 17.75" past what it was supposed to). I figured out that I could adjust it by adding an offset in the subassembly prompts menu for the countertop, but it would only add that offset if I entered the value into the menu, saving and closing, then opening it and repeating that value a second time. Is there a way to fix this so that a) my subassembly prompts save on the first go, and b) my back splashes don't randomly extend past the countertop?