100 stab attacks

[Zombified]

I've been trying for this for a long time now. I have been parrying to get the opening but I have stabbed well over 100 times and still no achievement. Can someone offer me some tips as to what kind of stab is needed for this? Because obviously some don't count. Thanks.

[curi42]

achievements don't get counted sometimes. seems to be a bug with game center. so i'd stop trying and hope it gets fixed some time.

[Zombified]

Is this confirmed by Chair or and admin? If so could you please post the link?

[DeltaKain]

it hasnt been comfirmed by them but there are posts and other threads around that clearly indicate that such as getting the obviously much harder achievements such as getting Epic without even getting the 'En Guard' achievement...