I'm sure it's not an entirely unintentional bug, as I know it was discussed in the test server section... so it's related to a change in how the mechanic for this works now...
But I'm finding that I'm getting hit by zombies that have lunged and landed nowhere near me.
It's not the normal double/invisible attack stun bug, as they're not stunned.
I'm just finding now that even if I go quite wide when the zombie is winding up to jump, and he jumps well past me, I'm still taking damage when he lands, or in some cases while he's mid-air.
I noticed this as well in both a D20 graveyard and FSC. These mechanics weren't mentioned in the patch notes so I'm also curious as to what is going on.