Me neither; not sure. I put full elevator in to begin a parachute (pretty slow speed)- and the plane rotated, then the wings folded. You can see what happened after that.
I'm sure mine was a one-off; I'm sure yours will be fine. There are many of these flying without any problems- and were flown much more aggressively than I flew this in the 2 flights.
Yes. The pictures tell the story, really. The wing tube broke in the middle; folded up like a swan, then down it came.