I notice when you path a mob through water, once they get to the edge where they meet, the mob bounces. Now eventually you will see the mob cross the water but it definitely stutters. Is there a trick to make this more fluid?

We are likely suppose to send a special value when the mob enters water but we have no way to determine if a mob is in water or not on the server side so until the zone server knows the level geometry there is really nothing we can do.

What I ended up doing, this works okay and is about as good as it gets. When the mob is about to touch water, the next move I hit X and start sinking about 10 units, then put that position in next. This seems to work okay and only gives a slight jerk.