When teleporting using teleport history, I land a meter or two higher each time to the point where now I land above budlings i am supposed to be landing in. It's fairly subtle, like 1/2 meter higher each time. But over time, when going to the same places, it gets more and more extreme. For reference, I am going from my "home" to my backup on mainland and also my Linden home in the stilts. Each time, I land a bit higher and higher.