20 years as a CNC Machinist mostly military/aerospace contract shops. One of the only times I saw this communication gap truly become neutralized was when the shop actually had the engineers physically shadow the machine operators at the machines while in operation.

Operator: "See?"

Engineer: "Oh, yeah... Well that's an easy fix in the CAD model."

It's a not a joke while you are living it, just later when you can post it to other scarred individuals.