Why isn't my Paladin resurrecting my guard droids?

[Kings Bounty Hunter]

I won't get those 15 minutes of my life back again Clearly states they can resurrect machines, plants if they are in an adjacent cell, which they were. Left the repair droid out of the army as I was fighting Richard the tw*t on the 2nd island. If I use a repair droid in my army, his lvl 5 ogre (should this really be on the 2nd Island?) steals it's movement ability and waltzes 8/9 places and is right on my doorstep, wipes out three of my Inquisitors and I can only resurrect two...start again etc etc

What have I not understood about this ability........