Personal light sources stopped working

[Archythagoras]

Lamps, fire beetle eyes, and what not have stopped working for me has any had this happen? Other light in the game work like torches on walls and whatnot but my personal ones emit no light.

[Kavious]

Happens to me when I change accounts (swapping chars) without closing the client.

If I close the client completely and then log in, then it works fine