[UE6 Main] LumenRef stopped working in recent build

Summary

UE6 Main —
Built from source on 08-27

What Type of Bug are you experiencing?

Rendering (Graphics / Niagara)

Steps to Reproduce

r.LumenRef.Supported=True (in DefaultEngine.ini)
On launching a new project
r.LumenRef.Allowed 1 (in cmd console)
Result?
No difference in viewport.
r.LumenRef.Visualize 1 also appears incorrect

Previously everything was working.

Expected Result

LumenRef mode should be visible in viewport

Observed Result

LumenRef not visible

Affects Versions

5.8

Platform(s)

Windows

Additional Notes

Was working in previous build from UE6 main
Is there a different way of enabling now?
Cmd: r.LumenRef.Supported ?
HELP for ‘r.LumenRef.Supported’(ReadOnly):
Whether LumenRef is supported at all for the project, regardless of platform. This can be used to avoid compiling LumenRef shaders.
HISTORY
Constructor: false
ProjectSetting: true
r.LumenRef.Supported = “true” LastSetBy: ProjectSetting