"HW rulez" mod (add-on) for HoMM3.

I've encountered the following issue: after loading the game, everything works fine during my turn. However, after I pass my turn, I can no longer use hotkeys. Pressing "G" doesn't highlight the tavern, pressing the spacebar doesn't re-visit objects, and hovering the mouse over a hero's icon doesn't display the number of remaining movement points. If I save and reload the game, this problem disappears, but only until the next turn. Has anyone else experienced this issue?