Yes, hovering units sometimes drive way further and then they do 180° and come back to attack the unit, sometimes they just look at the unit but instead of shooting they kinda want to drive somewhere.Tanks (Sabres) have an AI sub-routine called SCATTER which is supposed to prevent them from blocking each other by surrounding a target. Unfortunately the scatter mode gets stuck sometimes and they just drive around the target aimlessly even if they already have a clear shot. Usually i've noticed tanks getting stuck in SCATTER mode when told to attack buildings (like extractors). At least it was the case in 6.2 and I wasnt informed of it being fixed yet. Have you ever noticed this happening?
Tracked units generally block each other, but what's worse, is when they clip one in another. Then they ski/float in some direction and can't stop and don't shoot, or they are generally just trying to drive from each other in one place and can't fight.
As I said, I absolutely adore how track units avoid water, and if there is anything I'd like to see fixed, is that tanks and buildings become rock solid entities that simply can't clip into. I don't even mind if they block each other, bump into each other, push each other, just to make them solid would be more than enough for me.
Also, it's funny to see when Maulers climb up the gun towers
PS: I just remembered something - Maulers sometimes "sink" into the ground, but they get out of it, but what I did notice is that Maulers, which are non-hovering units, didn't even once clip - they bump, crash, get confused, but they never merged into other units or buildings. Is there something special to them, and could that be applied to other non-hovering units? Or was it simply that I didn't notice them clipping?