Funny Bug in WE

Level 13
May 5, 2004
LOL i have a funny bug in WE:
On one of my maps I placed Mannoroth (I was working on something with the reincarnate-spell)
and -woosh- light out, the whole terrain was dark (not black!!) so you could hardly see anything concerning to the terrain (and only terrain). When I deselect Mannoroth light is back :idea: , selecting him -> light out and so on....

Anyone ever had a similar bug?
Simply would like to know.