Have you placed a light probe?
If so, have you updated the light probe (just move it a little bit or use the special mode for it on the side when selecting the probe).
PS: Are you changing the atmosphere in Level Data or in the Work Atmosphere Panel? The work atmosphere panel is just a temporary atmosphere and light probes will not take that atmosphere to calculate lighting.
Last edited by Larian_KVN; 09/10/17 08:58 AM.
