General

Topic	Replies	Views	Activity
[CRITICAL] Launching Session Error – “At least 1 module failed remote validation" Issues and Bug Reporting bug-report , session , open , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN	13	97	March 19, 2026
NEW UEFN 40.00 update - start session error - at least 1 failed remote validation Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative	3	37	March 19, 2026
Unable to delete folders from content browser Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative	0	8	March 19, 2026
[BUG] NPC Refuses to move to the NavigateTo() position by any means. Issues and Bug Reporting bug-report , open , fortnite , unreal-editor-for-fortnite	25	779	March 19, 2026
Error launching my map Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative	3	22	March 19, 2026
Tutorial: 大規模ワールド向けの効率的なマテリアル Tutorial & Course Discussions unreal-engine , fortnite	0	7	March 19, 2026
Duplicating items using DDoS attacks Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	2	105	March 19, 2026
In Round-Based Games Player Disconnects/Sudden Leaving Cause Freeze between round end and round start Issues and Bug Reporting bug-report , unreal-engine , open , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN	9	117	March 19, 2026
has left the world message shows twice Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative , closed	1	23	March 19, 2026
[UEFN] MODULE VALIDATION FAILED – download_failure 404 – Module stuck Issues and Bug Reporting open , unreal-editor-for-fortnite	8	83	March 19, 2026
Orbit Camera – Does not get removed from players, including in edit mode Issues and Bug Reporting editor , bug-report , unreal-engine , fortnite , unreal-editor-for-fortnite , fortnite-creative , closed	2	41	March 19, 2026
Keyboard Input failing in Editor Issues and Bug Reporting bug-report , unreal-engine , open	4	102	March 19, 2026
Matchmaking Incorrectly Allocates 3 Players Into 2-Player Sessions Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative , closed	1	60	March 19, 2026
Physic materials unexposed Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	1	37	March 19, 2026
When launching a session in Unreal Editor, the uploading part is extremely slow and fails most of the time. Issues and Bug Reporting bug-report , open , unreal-editor-for-fortnite	7	55	March 19, 2026
tag_view still requires instance of tag class Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative	0	21	March 19, 2026
Hitching in Game Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative	1	25	March 19, 2026
UMG menu interaction causes massive stuttering on other players Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	1	16	March 19, 2026
v40.00 Known Issues Issues and Bug Reporting fortnite , unreal-editor-for-fortnite , fortnite-creative Hello Fortnite developers, During pre-release testing for v40.00, our expanded testing process helped us to identify a number of issues that were fixed before the build was finalized for distribution. However, a few iss…	17	5648	March 19, 2026
Spawned prefabs are going invisible when going away and returning but collision is still valid Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	18	148	March 19, 2026
Instantiating a heavy material on verse causes fps hitches Issues and Bug Reporting bug-report , open , fortnite , unreal-editor-for-fortnite , fortnite-creative	22	355	March 19, 2026
Community Tutorial: Creating Large Landscapes in UEFN Tutorial & Course Discussions unreal-engine , fortnite	0	5	March 19, 2026
Unreal Engine 5.7 Released Announcements unreal-engine , Released , Staff-Pick-UE	204	23112	March 19, 2026
Allow creators to enable ADS in air for every weapon Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	3	103	March 19, 2026
Must use a Sleep(0.03) when changing a mesh_component on an entity or it will not update visually Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative , fixed	6	80	March 19, 2026
Game crashes when equipping the foundations power gloves Issues and Bug Reporting unreal-engine , fortnite , fortnite-creative	1	12	March 19, 2026
100% UEFN Crash when clicking on a stack box (UMG - regression) Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative	2	18	March 19, 2026
Trigger sound bug in UEFN Issues and Bug Reporting open , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN	3	74	March 19, 2026
FAB store unreal should be default specs box Feedback & Requests unreal-engine	0	4	March 19, 2026
STAR WARS™ Tools Now Live for Fortnite Developers Announcements fortnite , unreal-editor-for-fortnite , fortnite-creative , STAFF-FN-ANNOUNCE	1	60	March 19, 2026

[CRITICAL] Launching Session Error – “At least 1 module failed remote validation"

Issues and Bug Reporting

bug-report , session , open , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN

13

97

March 19, 2026

NEW UEFN 40.00 update - start session error - at least 1 failed remote validation

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

3

37

March 19, 2026

Unable to delete folders from content browser

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

0

8

March 19, 2026

[BUG] NPC Refuses to move to the NavigateTo() position by any means.

Issues and Bug Reporting

bug-report , open , fortnite , unreal-editor-for-fortnite

25

779

March 19, 2026

Error launching my map

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

3

22

March 19, 2026

Tutorial: 大規模ワールド向けの効率的なマテリアル

Tutorial & Course Discussions

unreal-engine , fortnite

0

7

March 19, 2026

Duplicating items using DDoS attacks

Issues and Bug Reporting

open , fortnite , unreal-editor-for-fortnite , fortnite-creative

2

105

March 19, 2026

In Round-Based Games Player Disconnects/Sudden Leaving Cause Freeze between round end and round start

Issues and Bug Reporting

bug-report , unreal-engine , open , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN

9

117

March 19, 2026

has left the world message shows twice

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative , closed

1

23

March 19, 2026

[UEFN] MODULE VALIDATION FAILED – download_failure 404 – Module stuck

Issues and Bug Reporting

open , unreal-editor-for-fortnite

8

83

March 19, 2026

Orbit Camera – Does not get removed from players, including in edit mode

Issues and Bug Reporting

editor , bug-report , unreal-engine , fortnite , unreal-editor-for-fortnite , fortnite-creative , closed

2

41

March 19, 2026

Keyboard Input failing in Editor

Issues and Bug Reporting

bug-report , unreal-engine , open

4

102

March 19, 2026

Matchmaking Incorrectly Allocates 3 Players Into 2-Player Sessions

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative , closed

1

60

March 19, 2026

Physic materials unexposed

Issues and Bug Reporting

open , fortnite , unreal-editor-for-fortnite , fortnite-creative

1

37

March 19, 2026

When launching a session in Unreal Editor, the uploading part is extremely slow and fails most of the time.

Issues and Bug Reporting

bug-report , open , unreal-editor-for-fortnite

7

55

March 19, 2026

tag_view still requires instance of tag class

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

0

21

March 19, 2026

Hitching in Game

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

1

25

March 19, 2026

UMG menu interaction causes massive stuttering on other players

Issues and Bug Reporting

open , fortnite , unreal-editor-for-fortnite , fortnite-creative

1

16

March 19, 2026

v40.00 Known Issues

Issues and Bug Reporting

fortnite , unreal-editor-for-fortnite , fortnite-creative

Hello Fortnite developers, During pre-release testing for v40.00, our expanded testing process helped us to identify a number of issues that were fixed before the build was finalized for distribution. However, a few iss…

17

5648

March 19, 2026

Spawned prefabs are going invisible when going away and returning but collision is still valid

Issues and Bug Reporting

open , fortnite , unreal-editor-for-fortnite , fortnite-creative