Published Version Ignores Updated Verse Code / Missing Runtime Properties in Packaged Build

Summary

When publishing my UEFN project, the in-editor version works correctly, but the published version behaves differently: certain Verse features do not run, and some logic works incorrectly. The published map contains the device on the island, but its Verse script does not execute.
Creator Portal logs show internal Verse runtime errors related to missing properties such as __verse_0x615EAE57_Version, suggesting the published build may be using outdated or partially generated Verse code.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

  1. Create a project in UEFN with a Script Device containing Verse code.
  2. Test inside the Editor — all features work as expected.
  3. Publish private version.
  4. Launch the private published island.
  5. The in-editor behavior differs from the published version:
  • one feature is missing entirely (Rank system),
  • another works incorrectly (Quest system).

Expected Result

The published version should match the in-editor behavior and execute the latest Verse code.

Observed Result

The in-editor behavior differs from the published version:

  • one feature is missing entirely (Rank system),
  • another works incorrectly (Quest system).

Platform(s)

Developing on windows PC
Testing on PS5

Additional Notes

pleeeese help

Full text of the errors appearing in the Technical section of Creator Portal:

  1. Verse unrecoverable error: ErrRuntime_Internal: An internal runtime error occurred. There is no other information available. (Internal error encountered: Attempted to access missing property ‘__verse_0x615EAE57_Version’. If this is a packaged/cooked build, are you attempting to use an editor-only property?.) Truncated callstack follows: Device_AISpawner?se_C:SendEvent_OnPawnEliminated (Unknown source) (Source: Unknown(0,0, 0,0)) Device_AISpawner?se_C:OnPawnDied (Unknown source) (Source: Unknown(0,0, 0,0))
  2. Verse unrecoverable error: ErrRuntime_Internal: An internal runtime error occurred. There is no other information available. (Internal error encountered: Attempted to access missing property ‘__verse_0x615EAE57_Version’. If this is a packaged/cooked build, are you attempting to use an editor-only property?.) (Callstack unavailable)
  3. Verse unrecoverable error: ErrRuntime_Internal: An internal runtime error occurred. There is no other information available. (Internal error encountered: Attempted to access missing property ‘__verse_0x615EAE57_Version’. If this is a packaged/cooked build, are you attempting to use an editor-only property?.) (Callstack unavailable)