env_sun just a streak in the sky, anybody able to help?

[Amazon Echodot]

Hello! I'm working on a Dead Space-themed map, but I ran into an issue with my natural lighting. The light itself is fine, yada yada looks purrrdy, but upon closer inspection, the sun looks like somebody is using Universe Sandbox to create HALO:

https://files.facepunch.com/forum/upload/434413/e10dea9b-cd0f-40d0-8101-62dd027a3c74/rp_deadspace_v20003.jpg

Does anybody know what is causing the sun to just appear as a lens flare streak? I've tried looking around, but this issue doesn't seem to be the topic of much discussion. Any and all help would be appreciated!