Full clear: The Flooded depths bug with shattering mobs

Is it even possible? Trying to do that for challenge. About 10 times cleared. Always 10-19 monsters left.

I tried to clear walking really slowly and covering all area but result is always the same: 10-19 mobs left.

If its not bug, can developer please tell where is the last mobs in here:

http://i.imgur.com/QK6JmJg.jpg


Anyone fully cleared this? I wont believe until I see picture lol

EDIT:
Ok I found the answer!

I turned off HATRED aura and I can clear it to 0 mobs no problems. Im crit build and oneshot the crabs there and shatter them with hatred so it gets bugged.

Everytime I use hatred I cant clear it.

I reported a similar bug for The Coves (http://www.pathofexile.com/forum/view-thread/1059529). The Flooded Depths worked fine for me, but I had the same problem in the Submerged Passage. Therefore, I believe the problem is not tied to a specific map, but simply because either some monsters are counted which never spawn, or they spawn in inaccessible locations. But that's pure speculation of course.

Ok I found the answer!

I turned off HATRED aura and I can clear it to 0 mobs no problems. Im crit build and oneshot the crabs there and shatter them with hatred so it gets bugged.

Everytime I use hatred I cant clear it.

You're right, it's when shattering crabs. In the coves I had 7 monsters remaining when I opened a strongbox which spawned (among others) crabs. After killing everything using freeze pulse I suddenly had 13 monsters remaining - because of 6 crabs which were frozen in their first form.