Reclaim, guard, Metal Upgrade and any order that uses a selection area ring seem to be misbehaving.
Try setting a unit to reclaim a patch of metal, or have your LVL-2 con units try to upgrade metal patches in a certain order with the selection area ring for these options, they will always go to the nearest/first selected and perform the operation, then they wander totally outside of the area that you defined to do this same task.
It is especially noticeable with reclaim area orders, the units will grab the nearest reclaimable object, then sometimes just wander completely away, ignoring metal that is right in front or nearby it.
This is a real bitch if you have your commander or other valuable CON unit set to area reclaim a specific area corpses or Battle leftovers, just to see him wander straight into the enemy or head straight for an enemy Defence.
It was working fine previously in spring release 0.74b3.