Combat - What Am I Doing Wrong

[dagoo7]

Just started playing and have handled combat fine up until the point where you go to the mines and have party members join for the first time. When entering combat with all three (all melee), I find that I often can't get the main character to attack. I am armed and keep clicking on enemies but he just stands there and takes a beating. If he is facing the wrong way, he won't even turn around.

I have sentry mode set to attack for all three and other npcs seem to be attacking fine. What am I missing here or doing wrong? any input appreciated.