Build on the ground and don’t have ten layers of foundation and call it a floor.
Obviously the glitch sucks, but honestly if the bottom of your base is just stacks of foundation, thats your fault. Don’t build like a jerk and stack hundreds of foundations 
I play on like 6 different officials and all of my bases have ground level floors. When this glitch happens, guess what? At most, I fall to the bottom floor of my base and that’s it. Feet firmly on the first floor, not losing all my gear in ten layers of unnecessary foundations. 