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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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19
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5905
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March 23, 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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383
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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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1794
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February 11, 2026
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[Major] Release verse validation servers always seem to use an older project state
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5
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90
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March 24, 2026
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Matchmaking issue – players always placed into separate sessions instead of the same lobby
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37
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386
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March 24, 2026
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Bug on all Fortnite creative maps
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0
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1
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March 24, 2026
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Error launching my map
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4
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33
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March 24, 2026
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Launchpad is broken in combination with movement modulators.
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0
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4
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March 24, 2026
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Grass not rendering in UEFN play session even with new official template like Greasy Grove.
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2
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21
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March 24, 2026
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When performing Jam Tracks, it may unexpectedly lower the BPM and raise it again.
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7
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42
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March 24, 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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56
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2652
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March 24, 2026
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Project Is Broken Internally.
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1
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14
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March 24, 2026
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Disallowed reference to /Script/Engine.LevelScriptBlueprint by my level file?
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8
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179
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March 24, 2026
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Memory Pressure Warning popup doesn't respect "don't show again" checkbox
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2
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13
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March 24, 2026
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Memory Pressure pop-up occurs too often (40.00)
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1
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50
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March 24, 2026
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Failed to resolve validation session
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3
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64
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March 24, 2026
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Player and car can go through collidable geometry since last update
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1
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19
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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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36
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530
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March 23, 2026
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First time launching a playtest from UEFN 100% NEVER loads verse properly and requires stopping and starting the test
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4
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36
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March 23, 2026
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Entering a big Data layer area creates a delay on player building
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10
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339
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March 23, 2026
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When launching a session in Unreal Editor, the uploading part is extremely slow and fails most of the time.
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7
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59
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March 23, 2026
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Verse defer stack not working
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3
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79
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March 23, 2026
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Variables in player not saving properly when closing unreal
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0
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5
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March 23, 2026
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Opus Compression no longer Validates
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1
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13
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March 23, 2026
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Game crashes when equipping Power Gloves
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2
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59
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March 23, 2026
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Triggers causing sound bug
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2
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23
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March 23, 2026
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Bug Island Session
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2
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35
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March 23, 2026
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Players crash when trying to join a match in-progress on published islands.
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5
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42
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March 23, 2026
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Ballistic Shield Can Be Used To Damage Players In Safe Zones
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2
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21
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March 23, 2026
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False Rejection in Island Review!
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2
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25
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March 23, 2026
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