Boat teleports after leaving in nether. The boat teleported to some other portion of my blue ice track. I was able to replicate this within the game before saving and exiting. Leaving at the same point will teleport the boat away, but in the same position. I have not been able to replicate this otherwise.

Of note: This world is large (330 mb), I was playing around with hiding the HUD and exiting and entering boats when this occurred (can’t exit boats with HUD hidden, not a glitch), I was recording while this happened, and I had just set an Anchor point in the nether