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v40.10 Known Issues
Hello Fortnite developers,
All significant issues identified during pre-release testing for v40.10 were resolved prior to release. We’ll update this thread with any issues identified post-release.
v40.10 also includes …
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2
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307
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March 30, 2026
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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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20
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6370
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March 30, 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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425
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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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1812
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February 11, 2026
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Metahuman Manager/Packaging Metahuman does not want to use custom textures
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7
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48
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March 31, 2026
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Matchmaking issue – players always placed into separate sessions instead of the same lobby
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103
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1014
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March 31, 2026
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Only Switch 2 crashes.
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0
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4
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March 31, 2026
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UEFN: Platform Cook: We ran out of diskspace.
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2
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14
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March 31, 2026
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Only Switch 2 crashes.
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1
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22
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March 31, 2026
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[CRITICAL] Unable to launch session – “At least 1 module failed remote validation”
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45
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605
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March 31, 2026
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Materials are not correctly kept between rounds.
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4
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28
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March 31, 2026
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Duplicated a stackbox of 6 horizontal slots. selecting 2 of the duplicated text blocks to realign crashes entire editor
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0
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6
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March 31, 2026
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Custom NPC's do not animate
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0
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2
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March 31, 2026
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UMG Binding Issue with blinding tint to a color variable
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4
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106
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March 31, 2026
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Lawful Explosive Mammoth Pistol does not respect cloaking
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5
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41
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March 31, 2026
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MHC DDC Export wrong texture maps resolution
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2
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50
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March 30, 2026
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Missing Grass, Rocks, and new Foliage Setting in Fortnite Creative
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8
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242
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March 30, 2026
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Cinematic Sequencers not working after round 1 when set to "Instigator Only"
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3
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48
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March 30, 2026
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AI Assistant – Performance and Code Handling Bug (Webpage & UEFN)
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7
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69
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March 30, 2026
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Problems with updated Discovery maps
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9
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83
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March 30, 2026
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Missing Ambient Audio Containers and Legacy Sound Triggers in Save the World
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1
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115
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March 30, 2026
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Invisible Storm Sometimes
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4
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42
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March 30, 2026
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Matchmaking network error middle east server
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1
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36
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March 30, 2026
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Not every single Barrier style is exposed in UEFN
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3
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26
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March 30, 2026
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Some Items are not validating in the item placer device
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19
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397
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March 30, 2026
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Dial-A-Drop is bugged.
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2
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21
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March 30, 2026
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Invisible storm bug
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7
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182
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March 30, 2026
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Recently Published Maps between active versions no longer show any indication that the player is in a non active version
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1
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234
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March 30, 2026
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First Person Camera breaks when crouching with certain weapons since 40.00
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1
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56
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March 30, 2026
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BigBush looks different in game VS in Editor
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2
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43
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March 30, 2026
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