I don't fast travel, but I do use the carriage system occasionally. When I do I'm met by all the enemies I've reanimated in the local area.

Just traveled to white run and 4 draugr deathlords were there waiting for me, never happened to any of my previous conjuration using characters.

I'm on xbox with patch 1.5.

ha thats strange...it would nice if my missing thralls all threw me a welcome home party when i use the carriage

A LOT have people have been experiencing this with fast travel. Not heard of it by carraige before. I really wish we could get some kind of answer from Bethesda on whether they are aware of it, and if it's likely to be fixable. It wreaks chaos in the game, big time.

It's not thralls, it's reanimated corpses. Everytime I travel to winterhold I'm met by 3-4 bears ha, but they aren't hostile to me unless I attack them once (as opposed to the three times you get with a reanimated corpse).