Prefab Editor Crashing More Frequently [39.00]

General Issues and Bug Reporting
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1

Summary

Every since 39.00 update, prefab editor appears to be crashing more frequently.

I have not been able to narrow down the cause. Logs sent privately.

(Other quality of life changes added have also made the prefab editor extremely clunky)

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

During active use, prefab editor will crash eventually

Expected Result

To Not Crash

Observed Result

To Crash

Platform(s)

windows

3

Quality of Life Problems of the Prefab Editor

From the Newest Update:

  • Alt Drag instantly deselects the duplicating item and forces to select the root
  • Anytime you select anything in the prefab editor, it first selects the root. This was a useful feature in the main viewport but is incredibly annoying in the prefab editor
  • In-Place Prefab editor sometimes completely changes where the child entities are locating, messing up their local positioning
  • Random crashes are more frequent when interacting with prefab editor in general
  • Prefabs collapse all their entities when you save it, you also can’t select entitles when their parent is collapsed

QoL Requests

  • Duplicating an entity will rename it to “entity” I would prefer it would work the same as the normal outliner where it will duplicate the name with an incremented number (or add a number if there was none)
  • Turn a group of sub entities into their own prefab (this is possible in the main editor outliner but not in the prefab editor)
  • Right Click → Attach To Entity menu action. Currently the only way to attach entities to each other is to drag and drop them, so if you have a long list, it can become a pain. (This is a pain point in both the prefab editor and the main editor)
1 Like
5

Another QOL Request:

Prefab editor outliner view should jump to the selected entity. Right now I need to scroll through and attempt to find it.

6

QOL Request:

Due to 39.00 changes, when i attempt to select a mesh or someting in the editor and the entity is in a collapsed section, it does not let me select it. Instead, I would prefer it selects it, and it uncollapses that section in the prefab outliner

7

Will link this here too for some of the issues visually shown

9

If you close the output log it seems to speed up the prefab editor abit when making changes to transforms ect

11

Hello!

@TomJank would you be able to run UEFN with the command arguments flags -onethread -rhivalidation and let us know if you still reproduce the crash (and share your log privately)?

Thank you!

Massimo

13

I’ve been having the issue specifically with 2 (maybe 1) prefab. The 2nd one contains the 1st.

Attempting to edit either crashes UEFN. The 2nd prefab contains multiple other prefabs that open just fine as shown in the attached video.

I’ve edited the video to show both crashes. Opening E_PlayerPlatform and E_Gameboard.
(First 55 seconds show opening the other prefabs that E_Gameboard contains, opening just fine)

I’ve included my log files as well.

I tried launching with the shared flags and resulted in the same. logs should include all attempts with and without flags.

SG_Prefab_Crash_Logs.zip (293.3 KB)

14

FORT-1026346 is ‘Closed’ as ‘Fixed’. The issue will be addressed in 40.00.