I was thinking to the disabled collision during time-warp, drag disabled, and the fact that sometimes your trajectory is slightly modified in an unexpected way.
Well, technically, only the last one is a glitch, but this is rarely a problem to me.
Technically that's not a glitch, it's because physical effects other than gravity are disabled during time-warp. That's intentional. It's better to dock 2 objects together if you don't want them to drift during time-warp. By the way that's what would also happen in real life, and I don't think that reality is glitched