Graphics look different when switching to different setting, then back to the same one

[ImPeQu]

Summary

I’m using a basic UE Lighting setup (Picture 1). When i go in-game and change my Global Illumination setting from Ambient Occlusion to Off, then back to Ambient Occlusion, the game looks compeletely different even tho I’m using the same graphics settings as before. It’s the same case when switching to Lumen than AO, Etc.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

1. Disable the Fortnite TODM and add a basic UE Lighting setup (Picture 1)
2. Go In-Game on all Epic Settings
3. Change the Global Illumination setting from Ambient Occlusion to Off, then back to Ambient Occlusion.

Expected Result

Game looks just like it did before

Observed Result

Game looks completely different. Either a lot darker or a lot brighter.

Platform(s)

PC

Upload an image

Video

PеQu (@ImPeQu) on X

Additional Notes

Picture 2 and Picture 3 are both taken on the same graphics settings. One is before and one is after changing Global Illumination back and forth.

[Flak]

Thank you @ImPeQu - getting someone from lighting to take a look.

[UE_FloD]

Hi @ImPeQu

Just guessing at this point, because I cannot replicate your issue:
Could you check your skylight for me and make sure „realtime capture“ is turned on?

From your screenshots it looks like the skylight is not getting updated.

[ImPeQu]

Just checked, Real Time Capture is enabled.

[ImPeQu]

@UE_FloD

Update, I’ve just noticed this happens in the editor as well.

[ImPeQu]

I temporarily fixed the issue with a sequence which disables and enables Real Time Capture, so you were right - the issue has something to do with that.