The memory calculation is stuck and not progressing

Summary

I’ve been trying to update my map for several days now, but after creating a private code and attempting to perform a memory calculation, the loading process just keeps going on forever and never makes any progress, even after several hours.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Memory Calculation

Steps to Reproduce

Upload to a private version
Launch session
Launch memory calculation

Expected Result

Memory calculation completed in a few seconds.

Observed Result

The memory calculation screen keeps loading indefinitely, and the player is stuck and cannot move.

Platform(s)

PC

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Additional Notes

I tried:
Restarting my computer
Adding or removing elements from my project
Creating several new versions using my account and a team member’s account
Deleting and recreating an HLOD layer
Nothing worked

I didn’t encounter this problem before publishing my map, and I haven’t made any changes since then that could be causing the calculation to fail

The status of FORT-1144792 changed to ‘Needs Triage’. We are routing this to the appropriate team for investigation.

Experiencing same issue, stuck on “Calculating Memory”, no progress bar and player in same position.

Logs from 2 tries:

UnrealEditorFortnite-backup-2026.10.14-01.14.03.log (14.8 MB)

UnrealEditorFortnite-backup-2026.10.14-00.50.44.log (7.9 MB)

EDIT: Issue was a large skybox set to spatially loaded, it now calculates with that change.