[LVL ED] Light remains even when pointlights have been deleted

[serbusfish]

I placed pointlights in an area on my map but decided they were too bright, however when I deleted them all the map stays lit where the pointlights where. There is no boxlight, i tried group moving every light on the map and the light still remained. I noticed there was a cache file for the map so I deleted it but it hasnt sorted the issue.

Any help would be really appreciated.