I drive from a Human Warrior and have following 2 human Warriors and 2 Dwarven Paladins and occasionally my 2 dwarfs would get stuck (I think due to size issues going up big steps/walls/hills). Less frequently one of my human would also get stuck.

This could be problematic for me in that the Dwarfs would just be stuck there running against the step/wall and not heal me (even if in range) unless I make them stop following or have them catch up. The one time it was a real problem was in the SM Graveyard.

The fix for me in most cases would be to issue a jump command to my whole party and the ones trying to catch up would clear whatever obstacle was in the way and catch up.

Now that I am aware it doesn't really bother me and EMA helps me know ASAP if there is an issue.

I think I will keep my class/race combos BiS and I don't think I will be trying to match races.