Every demigod sometimes has problems where they will freeze until given a move/attack order and not use any skills. For some reason, if they aren't attacking, sometimes they also won't be using skills...
This really affects people who rely on timing for their skills or skill spam more than anybody else, especially against enemies who stun. I can't count the number of times I have barely survived or died in an encounter I should have won because a stun cancelled my attacks (while still in melee range) and my bites wouldn't work. 
