Build Mode Feedback for EA

The "Wall Doesn't Exist" glitch on upper floors is paralyzing for builders. I can't think of a glitch other than the disappearing ceiling tiles in The Sims 3 that has taken more time for builders to work around. This is much worse, though--sometimes forcing us to have to rebuild an entire lot from scratch. And even when we get the walls the way we want them, we have to make absolutely sure they are exactly right because the walls may become "nonexistant" soon afterwards, and in all likelihood will. I'd settle for another few months without pools or other additions to the game if only this glitch would get ironed out. I'm pretty convinced it is caused by roofing because the most reliable way to get around it is to delete all roofs (courtesy of @Fischio7), then fix the walls, then replace all of the roofs (doesn't always work for me, but works more often than other solutions I've seen on the internet).