I'm trying out Ry'leh now.
And I'm experiencing a new problem that seems to be a bug.
I paralyze some large enemy monsters toward the back of the enemy army. Some front enemies then rout.
The front enemies don't go around their paralyzed comrades. They just stay there.
At the very end of the battle, my expensive illithids roam the battlefield killing paralyzed critters. Nice touch, by the way.
Unfortunately, over half of them get killed by the army that can't retreat past its own paralyzed comrades. Perhaps they should have found a way to get around their friends?