Orc Army Missing

[daikl]

Its the second time this happens on two different towns.I had my army(my best units) at Makkrada(or what the orc town its called).Had to leave so i used alt+f4 and when i got back ingame a few hours later,my army was gone and strangely the hero was back in town.
Long story short:whole army vanished and hero got teleported back in town,despite him being pretty far away.
Please fix this,its a fun killing bug,few players play orc,even fewer will if these bugs continue.