UEFN freezing/ crashing when clicking on verse devices

Summary

When you click on certain Verse devices in UEFN (in the Outliner or viewport), the editor freezes/hangs for several minutes.

Why It Happens:
The freeze occurs when a Verse device has @editable references to other heavy devices - especially devices that themselves have many references.

When UEFN tries to display the device properties in the Details panel, it has to load/resolve ALL the referenced devices and their properties recursively. I think this causes the freeze.

I couldn’t find anyone else with this issue. And was wondering if it was a common thing or if anyone knows a way to fix/ work around it?

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Devices

Steps to Reproduce

See video

Expected Result

See video. The video shows it takes about 10minutes to open the details panel + multiple minutes to link a device to it.

Observed Result

Uefn freeze/ See video

Platform(s)

UEFN/ PC

Island Code

Video

The status of FORT-1024634 changed to ‘Needs Triage’. We’ve confirmed the issue and it’s waiting to be assigned to someone to fix it.