It surely isn't a bug and I wonder how they messed this up so bad. In every game there can be some clipping glitches, but those are small things like hairs, spikes or hands that just go through another body. Even in this game they made it that tails will bow if pressed against a fence for example. Yet dinosaurs walk straight up through another one. It is ok if a tail will stick through a tree or even another dinosaur but this is just awful. I hope they'll take their time, now that the game is rushed anyway. This needs a heavy bug fix patch, a ton more animations, attractions, better AI and behaviour and toilets.
After 30 hours the immersion is just out. My fun with this game is sadly already gone.