Newly created UEFN projects suffer from severe performance issues, making the editor nearly unusable

Summary

I have been experiencing ongoing issues with UEFN (Unreal Editor for Fortnite). Whenever I create a new project and add folders containing textures and meshes, the editor starts lagging significantly. Everything becomes delayed and feels like it’s running at around 30 FPS, even though hardly any memory is being used and very little has been built in the project.

Strangely, this issue only occurs in newly created projects. In my older projects, which contain significantly more content and folders with many textures and meshes, everything runs smoothly without any problems.

I kindly ask for your assistance in resolving this issue as soon as possible.

Best regards,

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

World Building

Steps to Reproduce

-Start Unreal Engine

-Create a new project

-Close Unreal Engine

-Move folders from other projects into the folder of the new project

-Start Unreal Engine and open the project

Expected Result

The end result is that Unreal Engine runs extremely sluggish and delayed in this project. It feels like it’s running at around 30 FPS.

Observed Result

The observed result is that UEFN becomes unusable in the new project due to performance issues.

Platform(s)

PC