Also affects the bubble columns.
16w06a: No rubberbanding, but still collision error / not synchronized.
In the water also slightly affect.
The problem is that the motion handling part of the code is only done server-side. This includes setting the horizontal motion (X and Z) to 0 and reducing the vertical motion (Y) when the squid is not in water. Because of that the server resets the horizontal constantly while client-side it changes when the player pushes the squid.
MC-122761 Squid animation is very laggy.
MC-136200 The squids (appear to) fly?
MC-136421 Squids don't fall even when teleport command doesn't change their y-value.