Skirmishers Can't Skirmish.

[Silius Saurus]

I was most chagrined and annoyed to see that my beloved light infantry can no longer skirmish; they refuse to fall back when approached, despite skirmish being set "on".

Also, their facing (forward firing arc) is more often than not pointed obliquely to one side, despite being set up facing 'forward'.

This is severely pissing me off. Has anyone else noticed it?

[fluffstalker]

Yes. Its a documented bug.

In order to get the most out of your lights try not to overload on them, use them in conjunction with heavier infantry, and micro them when the enemy gets into range. when their arc gets messed up, click the advance button once to realign them. Therefore, be cautious with your initial move so as not to move them too far forward.

In MP their firepower is still too good to pass up, regardless of buggy behaviour.