Seems to be a bit of lag lately. Sometimes I can spawn and since building geometry hasn't loaded yet, I can walk through them. I've probably been reported for this a number of times.
I get some visual glitches when I am at Mani biolab. The mani post north of the lab, right of the tower. That big rock beside the spawn room, middle of the wall that can see into the upper deck....when im up there the entire world disappears on me in whatever direction im not looking. Then as I turn around I see the world flashing on and off.