The devourer's special ability should aim at the target which was focused by the player.
It currently aims at random it seems.

Expected behavior:
The special ability is normally fired at random.
When a player selects a target the special ability also aims at this target. (which it currently don't, as seen in the battle below)
After 2 rounds the special ability returns to random targeting.

https://xcraft.net/battle/index.php?battle_id=5acfe3ed9b8c2651199760f1ec374c90

In this battle it first aims at the closest or strongest unit. But then it aims at the other unit just to go back to the first / strongest units afterwards and also after I focused the stronger ones it shoots it's special ability at the not aimed group.

ok it took me 10 minutes to understand how that scava were attacking every 2 seconds . . figured it out after some time no bug detected 

Once a group is identified for the attack, the target is selected from this group by accident. The choice for all units is 1 / [the number of units in the group]. For direct attacks, there is a rule (with one exception): if the target was not destroyed after the shot, the next shot in the volley will be directed to it. This rule is incorrect for mass attacks (for obvious reasons) and is almost never performed for special attacks.