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v40.00 Known Issues
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…
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17
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5597
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March 19, 2026
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Your Feedback and Bug Reports Help Shape the Future of Fortnite’s Developer Tools
Your feedback directly shapes the future of Fortnite and Unreal Editor for Fortnite (UEFN), informing how we evolve our tools, features and roadmap. Today, we’re sharing how we turn your input into action using two custo…
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14
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355
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March 19, 2026
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[FORUMS] Editing Bug Reports Causes Escalation Issues
Hey folks!
We can escalate posts in the Issues and Bug Reporting forum to create a ticket for us to view. This makes it easy for us to get more information from you and for the developers to see exactly what the issue i…
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13
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1791
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February 11, 2026
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First Person Camera Device bug when crouching with Fortnite Ballistic weapons after switching from the first weapon in the weapon list.
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0
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2
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March 21, 2026
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Terrain HLODs generating with dark outlines
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0
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3
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March 21, 2026
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Remove Text Chat bind key to Enter key
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6
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192
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March 21, 2026
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[Critical] Running live session use 97% of memory after v 40:00 update
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8
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83
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March 21, 2026
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Destructible Objects Not Breaking Correctly in Certain Areas of Large UEFN Map
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1
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15
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March 21, 2026
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The Ball Spawner device's ball goes through the barrier device after multiple hits or a single hit (since 40.00)
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0
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4
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March 21, 2026
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Building verse, validating project or assets, causes massive hangs/stalls for minutes at a time
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0
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2
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March 21, 2026
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[Scene Graph] Client crashes after 10 minutes of consistently spawning and despawning entities
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31
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641
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March 21, 2026
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[MAJOR] UEFN “Cooker Out of Memory” / “Cook Timeout” Errors Persist and Worsen After Patch 38.00
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55
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2600
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March 21, 2026
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VFX devices no longer working post CH7S2 update
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1
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14
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March 21, 2026
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Win is awarded to the last player standing instead of highest score.
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4
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32
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March 21, 2026
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[Verse] `ToDiagnostic()` breaks when being concatenated or formatted with extra strings
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2
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10
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March 21, 2026
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Forums search is not working for UEFN forums
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0
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4
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March 21, 2026
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Can't interact with `interactable_component` during "non-round" phases anymore
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1
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9
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March 21, 2026
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Sidekicks does not have icon_component and description_component
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1
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13
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March 21, 2026
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Missing Grass, Rocks, and new Foliage Setting in Fortnite Creative
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5
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37
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March 21, 2026
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UEFN Lego map - Unable to check in changes
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1
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6
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March 21, 2026
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IK / Retargeter / NPC Blueprint system broken after latest UEFN update (was working before)
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0
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8
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March 21, 2026
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Problems with my Creative map.
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0
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5
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March 21, 2026
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Can't launch sessions with the Star Wars brand templates
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0
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3
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March 21, 2026
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Matchmaking issue – players always placed into separate sessions instead of the same lobby
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29
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277
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March 21, 2026
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((errors.com.epicgames.common.processing
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1
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61
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March 21, 2026
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bug-report Proximity voice
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0
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5
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March 21, 2026
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Custom Items and Inventory breaks keybinds and makes gameplay unplayable
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2
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12
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March 21, 2026
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Lost UEFN project due to OneDrive/Revision Control issue but island is still published and playable – looking for recovery options
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0
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4
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March 21, 2026
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Can't launch a session for one of my projects
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1
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4
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March 21, 2026
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MSS_PlayRandom_Loop_Preset now reporting validation issue. Preset creates Stereo, though Validation asks for Mono. 'Fix' is not working
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1
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7
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March 21, 2026
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