Oh yes, its gone and unrecoverable. lol. I had suspected it would, because it was on the same map as my latest castle, and looking over it it no longer had its red roof, so I figured the glitch only works in the current session. It took 3 tries to get it to work, but it was worth it. It had been something I've been wanting to do(along with caprontos' making thatch roofs on stone walls) and the opportunity presented itself.
So I got the screenshot I wanted, saved and reloaded just to be sure, and yep its gone. Too much effort to recreate every time. Lol. And it'll eventually get fixed, if not in the next patch, so gotta make use of it while one can.