what about creating dummies of the units on cast (default angle is faster than both SetUnitLookAt and SetUnitFacing), hiding the original casters, and storing all orders given to the dummies. as for the buffs, recast with dummies to the original casters when spell finishes
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.