umm, hmm enemies and allies to same building? Hmm, maybe try putting the ability on a passive building like a fountain.. I doubt it would work though, you likely have to trigger it. But anything you put the return resources on will return the resource there if its closer
I'm pretty sure that's not it. There's nothing there to begin with, so following that logic, the Return Gold and Lumber ability shouldn't accept anything.
No. And you can't detect it. :\
Unless you make something very difficult, like detecting when a unit is ordered to return gold and lumber, and periodically check the structures around the unit.
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.