[CRITICAL] Lumen no longer functions as intended when using the Chapter 5 TODM as of v39.10

General Issues and Bug Reporting
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1

Summary

As of v39.10, Lumen no longer functions as intended when using the Chapter 5 Day Night Cycle / TODM - it does not automatically adjust lighting brightness when entering/exiting dark spaces. This is a very critical issue.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

  1. In World Settings, set “World Time Of Day Manager” to "Day Night Cycle - Chapter 5
  2. Set your viewport scalability preset to “high”
  3. Create a 2x2 building with a roof and windows
  4. Enter the building

Expected Result

The lighting should automatically adjust brightness to make it easier to see indoors

Observed Result

The lighting does NOT adjust automatically, making it EXTREMELY dark, even with light sources.

Platform(s)

PC

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Additional Notes

Placing down the “LumenExposureManager” blueprint is NOT a valid workaround for this issue, as it completely breaks the lighting and makes everything EXTREMELY washed-out both with and without Lumen enabled.

2

FORT-1032007 has been created and its status is ‘Unconfirmed’. This is now in a queue to be reproduced and confirmed.

3

If lumen exposure manager is becoming mandatory like this, it really needs to be explained and it should be a device that 1.0 users can use..

4

@Flak this is a very critical issue affecting the lighting in many UEFN games and all Creative 1.0 games!

5

Having the same problem here. It is impossible to work in UEFN with the light on currently on indoor areas, requiring to work unlit.

1 Like
6

Hi

The documentation is here for UEFN, nothing about Creative 1.0

Using the Lumen Exposure Manager in Unreal Editor for Fortnite | Fortnite Documentation | Epic Developer Community

7

the lighting setup changing needs to be explained i mean, like hey devs lighting is changing oh ok cool thanks

volume itself its basically just a ppv but its pretty vital in uefn terms cause lumen is crazy, should be in a default map really lol

1 Like