Summary
The PS5 platform cook remains In Progress for exactly 20 minutes and then fails without an actionable error, while Windows, Linux server, Android, and iOS succeed; the accepted published island also fails to load on PS5.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Other
Steps to Reproduce
Open the project in UEFN.
Select Connect To Platform and launch the session on PS5.
Open Session Inspector.
Observe that the Linux server cook completes successfully.
Observe that the PS5 cook remains In Progress.
After exactly 20 minutes, the PS5 cook changes to Failed.
Attempt to launch the accepted published version on PS5 and observe the same inability to load.
Expected Result
The PS5 platform artifact should finish cooking, allowing the PS5 to join the UEFN session and load the accepted published island.
Observed Result
The PS5 cook remains In Progress for exactly 20 minutes and then changes to Failed. No asset, package, Verse, or validation error is returned locally. The published island also fails to load on PS5. Windows PC, Linux server, Android, and iOS complete successfully.
Platform(s)
PlayStation 5 (affected)
Windows 11 (UEFN host)
PC, Android, and iOS tested successfully for comparison
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Additional Notes
Project validation and Verse compilation succeed. I performed a Full Recook and reproduced the issue on a fresh module version. The temporary Valkyrie upload staging folder was also cleared.
The UEFN log reports that server-platform cooking finished and that it was waiting on client platforms:
Cooking for server platforms finished, waiting on client platforms…
The server/client cook-and-load phase later records 681.269 seconds before the session shuts down, but no actionable PS5 cooker diagnostic is returned.
The issue affects both Connect To Platform and the accepted published release. The same project cooks and runs successfully on Windows PC, Android, and iOS, while the Linux server cook completes normally.
Environment: UEFN/Fortnite 41.30, CL 56430492.
Please inspect the internal PS5 cook-worker failure associated with the supplied UEFN Reference ID.