Creator Portal blocks publishing with "Experimental editor setting(s)" when only Scene Graph (Beta) is enabled

General Issues and Bug Reporting
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Summary

Creator Portal blocks publishing with “Experimental editor setting(s)” although only Scene Graph System (Beta, publishable) is enabled; UEFN’s Publishing Report for the same version says “Experimental Features: No issues found”

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Publishing

Steps to Reproduce

  1. Project 08174959-4ce0-6a6e-7b1f-d48e7fbd9b4e, Verse path /robypr@fortnite.com/BrainrotHospital, UEFN 42.x, Windows.
  2. Project Settings: all Experimental Access options are off. Beta Access: Python Editor Scripting OFF, Custom Items and Inventory OFF, UEFN MCP Toolsets OFF, Scene Graph System ON (the island’s Verse uses the generated *_asset mesh identifiers, which only exist with Scene Graph enabled).
  3. Launch Session, then Project > Launch Memory Calculation. Private version 6809-0443-0905 is created; memory 71,970/100,000, SUCCESS. UEFN Publishing Report: “Passed, Ready to Publish - Experimental Features: No issues found”.
  4. Creator Portal > Publishing > Private Versions > Create release on 6809-0443-0905.

Expected Result

All validation checks pass. Scene Graph has been Beta and publishable since v36.00, and no experimental settings are enabled.

Observed Result

Every check passes (Version Type, Download Size, Memory Usage, Asset Status, Verse Validation, In-Island Transactions, Verse Path) EXCEPT:
“Experimental Features - You can’t publish while these experimental features are enabled: Experimental editor setting(s)”.
Continue stays disabled.
The ExperimentalSettings.json that UEFN staged for this upload lists every setting as bIsEnabled=false except ValkyrieExperimentalSceneGraphSetting=true:
DefaultCharacter false, Inventory false, Python false, SceneGraphAnimation false, SceneGraphFeatures false, SceneGraph TRUE, Toolset false, VerseAssetRedirectorReflection false, VerseControlRigReflection false, FortniteExperimentalPhysics false.
Same result on private version 5153-7697-2627.
The project contains no Scene Graph entities, prefabs or experimental components.

Platform(s)

windows pc

Island Code

6809-0443-0905

Additional Notes

Which setting is being flagged as an “Experimental editor setting”? Is Scene Graph System now treated as blocking publishing? We are trying to publish for launch, so any guidance is appreciated. Logs are attached via the Reference ID above.