Arelith

I dunno if this is a glitch with arelith or something to do with the cleave feat, but when my character kills an entity/mob, he spins to face all other opposing targets randomly each couple of seconds and can't seem to reach them to attack or pull off the cleave feat.

Correction, sometimes he pulls of cleave, then he ceases attacking and starts spinning to find a target. In order for me to get him to attack I have to click the ground, then click an enemy.

Correction, again. It only happens with certain enemies. So far, with harpies because they stand far away. I think it has to do with me being short for a halfling... so my size or hitbox is actually different. I dunno

Is your character also a monk with the circle kick feat? Asking because the behavior you're describing is reminiscent of an old bug involving said feat.

It's a glitch happens to my unarmed monk from time to time the targets after the first one dies are out of weapon range and the character "dithers" between them unable to pick which one to move towards to hit.
Just click on one of them to make the character take a step towards it.

This is an EE bug, unfortunately. Just click on an opponent when it happens.

Dr. B is correct. This is a Beamdog issue and we can't do anything about it.