Here it is: https://www.dropbox.com/s/6nx1x96ml0z34lv/ltc_btc_GENERAL_LOG_2015-05-05_12_13_20.txt?dl=0 . Log where you shall notice 0.00002 is leftover of bigger order. It stays stuck in "pool order&trades/ping orders" after ping, and in "pool order&trades/pong orders" after pong. Here is screenshot how it looks in GUI: https://www.dropbox.com/s/guelhtdofx7qqdk/BTC-E_0.0000X_order.jpg?dl=0 . It is only cosmetic boder, no harm is done. Only has to be manually discarded. Or it is feature I am not aware, that helps calculate gains or something like middle sum? I do things like that in my calculations, and forget to hide it from users sometimes...