I was trying to be lenient with the people "accidentally" canceling their orders via the quantity edit feature.
So what happened is I made anorher order without enough BTC on the account. The Labcoin order was canceled. Then burnside restores my order. Now I got a few Asicminer shares, my Labcoin order back and a negative balance. Then I sold the Asicminer shares to get my balance back to positive. Now apparently the software checks your balance also when you are selling... So I had negative balance and pending Labcoin order when selling Asicminer shares. And my order gets canceled again. Hard to believe that just happened. Again, feels good