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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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5756
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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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369
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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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1793
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February 11, 2026
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Win is awarded to the last player standing instead of highest score.
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6
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38
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March 23, 2026
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IK / Retargeter / NPC Blueprint system broken after latest UEFN update (was working before)
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4
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20
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March 23, 2026
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[Critical] Bug with Custom NPCs
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1
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12
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March 23, 2026
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Scout Spire Devices are broken
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1
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3
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March 23, 2026
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Ballistic Weapons are missing reload sounds
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1
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5
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March 23, 2026
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Lawful Explosive Mammoth Pistol does not respect cloaking
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1
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12
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March 23, 2026
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[CRITICAL] Unable to launch session – “At least 1 module failed remote validation”
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35
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517
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March 23, 2026
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Switch Device does not show on state since 38.00
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20
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751
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March 22, 2026
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Can't create Weight-Blended Layer info in 5.7.2
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5
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336
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March 22, 2026
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Hive animation is missing
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10
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110
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March 22, 2026
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Launch session
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0
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1
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March 22, 2026
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VFX devices no longer working post CH7S2 update
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3
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21
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March 22, 2026
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Cancelling the grapple glove bugs every item.
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2
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9
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March 22, 2026
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Copy Paste Bug on Arrays
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0
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2
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March 22, 2026
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Unable to launch session (at least one m
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0
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5
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March 22, 2026
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can launch session
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0
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3
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March 22, 2026
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Since The v40.00 Update Our Map's Foliage And Interior Lighting Looks Much Worse
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0
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8
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March 22, 2026
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Matchmaking issue – players always placed into separate sessions instead of the same lobby
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31
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348
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March 22, 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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3
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30
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March 22, 2026
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Ballistic Hammer Pump Shotgun First Person Is Bugged When Crouching
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3
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15
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March 22, 2026
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Problem of structures being destroyed by the powers of Star Wars lightsabers
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1
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9
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March 22, 2026
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Double-Jump live edit flying applies when testing too and breaks many things
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14
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169
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March 22, 2026
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missing content
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2
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15
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March 22, 2026
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The Map does not show during UEFN Edit Sessions
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1
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3
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March 22, 2026
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The "Use Latest HUD" option breaks various features
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2
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6
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March 22, 2026
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SetMesh() not working properly
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1
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4
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March 22, 2026
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When performing Jam Tracks, it may unexpectedly lower the BPM and raise it again.
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6
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37
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March 22, 2026
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