1- Try the "issued order targeting a unit" action someway.
2- If theres an order, or a "base", or a particular sector u want to "attack" first (your map is a TD for example), try making regions and move the creep from one to another.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.