Tranquilized Velocipod falling through the ground / no collision

[(PSN)Maunstre]

When tranquilizing wild Velocipods, they have a chance to simply lose all collision and disappear when falling to the ground. Velocipods seem to hover extremely low to the ground in general, often clipping through the ground or water by default. This seems potentially unintentional and could be part of a trigger for this bug?