CoC Decoration Glitch: Disappearing Walls and Bonus Experience Points

I lost 2 outhouses (and was out elixir). I had 5 in storage, bought one (thinking the glitch would take one out of storage and do it's glitch thing), and then discovered I got charged for the one I took out of storage and lost 2 (had 3 in total at the end). So there may be a glitch within this glitch...

Now to be careful I've been taking the items out of storage before I buy more of them, and storing them in my town. Those lost outhouses have made me a bit paranoid!