UEFN Migration totally broken

Reference ID

2153ab90-4778-7eb7-b2ca-afbc301eb3b1

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Summary

I wanted to migrate a map with an average of 67K memory into a fresh project to just change the gamemode, but when it’s migrated the map got like 108K memory and the World Partition is still ON

Steps to Reproduce

  • Migrate a map into a fresh island
  • Check the memory increasing because the World Partition doesn’t work

Expected Result

Expected result : world partition should work and memory must be normal and not taking every actors in consideration at the same time

Observed Result

World Partition isn’t working and the avg memory is 108K instead of 67K which make the map impossible to work on for push/editing ect…

Platform(s)

PC

Island Code

6090-9848-3810

Additional Notes

I tried to turn off/on the world partition but nothing work.

Experiencing the same issue. Just followed this tutorial on how to duplicate an UEFN project https://youtu.be/cqgE7VzhSNM?feature=shared Worked fine a few months ago

Same problem here!

We’ve tried several methods to duplicate the project, and none of them seem to solve the issue. In fact, when migrating the project meticulously, it does seem to recognize the WP, but it doesn’t work when editing its values.

Thank you for the report, we’ll have someone take a look.

1 Like

UCB-1012 incident has been created. Status is ‘Awaiting Validation’.

Any news about this bug?

Still having migrating issues on 9/9/24, migrated assets are in the folder in explorer view but do not show up in the content browser. I am also unable to migrate any fortnite assets, on migrating a level it excludes all the fortnite prefabs and such.

This APPEARED to work for me, use the solution at your own risk:

  1. Close UEFN
  2. Go to C:\Users<your username>\AppData\Local\UnrealEditorFortnite\Intermediate
  3. Rename or delete CachedAssetRegitry_0.bin
  4. Restart UEFN