Reflection Capture won't rebuild???

Hey there gang!

Basically I have two starting points for my open world game. One is loading the map direct from the editor and the other is the same map being loaded from a blank map. When I load level from the blank map the map is far far too bright and I get an eror saying that reflection capture needs to be rebuilt. I have done this but still the same error occurs. Can anyone shed some light on this on how to fix it o I can actually rebuild reflection capture? THX!

A screenshot of my problem!