I really wish they would build in the use of INterior toys without having to use an exploit like this. Especially because INteriors are still incredibly unstable. I'm trying to build an Echo Base toy box, and the only way to make a good interior of the base is using INteriors. But they're so glitchy and have been causing so many other issues, I'm starting to wonder if it's worth it. I might use this glitch to build the interior parts inside the main toybox, but I'm afraid of other negative effects as a result.