In a mission after the server side patch I just encountered these not-so-old gems -

1) Attacked by ghost mobs. Thought I was getting double hit (another golden oldie), but when the guy drop I was still getting hit, by an invisible mob! And the kicker is there was NO PLACE this guy could have come from! I was in the extreme NW corner of a mission at the end of a LONG series of one way corridors. Ran fast and hard and fortunatly lost them.

2) Just lost 1973 XP picking a lock. I know its a server/client/visual bug, but still I liked it better when this one not in there

I'll leave crass comments about the dev/prog/testing team for others...