ExponentialHeightFog sometimes doesn't show

General Issues and Bug Reporting
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Most times it looks like this (which is correct):

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image1903×1067 153 KB

Sometimes it looks like this (which is incorrect):

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image1906×1067 178 KB

…no fog at all, and it remains that way for the entire game.

If I run the game again, it’ll probably work (even if I just end and restart without going back to UEFN). If I make any changes in the graphics settings, no matter how trivial, it’ll start working. Again though, on future launches there’s still a chance (maybe 20%) the fog will be missing.

Edited fog attributes below:

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image1150×1731 111 KB

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image1153×1524 76.9 KB

EDIT - Seeing my screenshots side by side, it looks like when it doesn’t work I also have much brighter black levels. Maybe a lighting problem in general, but it’s more noticeable here because I’m using fog?

2

Did you ever find a resolution or a work around? I’m experiencing the same thing months later.

1 Like
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Light settings sometimes change, and I think when that happens, you get this fog issue.

I think this is an internal bug on the FN TODM. I d recommend going on the world settings and removing it, then rebuild lighting on your own to have full control, heard its more stable.