I don't know how there's any glitches in TU27 but I found one so far. I started what has been called a "Nuclear Apocalypse Survival." If you want to know what that is for reference I made a thread about it here. I dug out a 9x9x5 underground room and made a 6x6 patch of dirt in the floor. I planted a Birch Sapling and left my base for about ten minutes then returned to find it had disappeared. This is a catastrophic loss as I only have three left to work with. I can't afford to try again until I know exactly what happened.