Okay, so I logged on today and noticed some of my crowns have disappeared. I went from having around 1.6-1.7 crowns, to 210. Not a big deal, but I figured it should be fixed. Same thing happened to my playing mate "gingersam". We both pretty much logged in at the same time. Gingersam lost significantly more, around 4-5k crowns. Has this happened to anyone else? We logged in at 9 pm EST and 5/9.
Did you happen to leave a Crown offer for Energy in the Market tab? That is the only reason I can think of.