Time of bug: any time
Where: probably everywhere mostly checked on XP archers and XP librarians
What: problem with selective attack by ranged attackers on designated mob while crowded by mobs
Why: bad script?
Other comments:
I don't know if it supposed to work like this but my logic says no.
When range attacker like wizard or archer is surrounded by mobs i have many times tried to "chop way out" but after selecting designated mob and using its attack icon it works randomly, sometimes like "random mob attack" or "target switch" or "move to melee range while attack is focused on previous randomly selected mob".
Also as mentioned above, why range attackers like wizard or archer are moving in melee range when selecting designated mob attack icon?
When using general attack buton it works fine but then it attacks randomly one of many mobs.
So basically this feature

I have tested it on tablet and 4 phones but to make sure that digitizers were't faulty or my finger is to big to hit mob attack icon i have also tested it on pc with mouse.
Can any one else confirm this weird behaviour?