I understand there are known issues regarding it, but just to share what I just experienced. Basically my system is lagging a bit, so when I changed channel and doored immediately upon my character landing on the ground, the client hanged at the moment the skill was casted (you could see the casting smoke-like effect, but the door isn't showed yet). Moments later, I disconnected. When I relogged (back in town), I realised the door was still there when it shouldn't be. When I changed channel, the door is still visible but of course not accessible. In addition, it will visually disappear if I create a party, and appears again when I disband the party.
