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v40.20 Known Issues & Pre-Release Updates
v40.20 Known Issues & Pre-Release Updates
Hello Fortnite developers,
Starting in 40.20, Custom Items and Inventory is moving to Beta and you can publish islands with this feature enabled. Using Custom Items and Invento…
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3
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857
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April 16, 2026
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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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4
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707
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April 3, 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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13
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464
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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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1839
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February 11, 2026
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Regression Scrollbox no longer works in the umg widget
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1
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5
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April 17, 2026
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UMG Widgets with Verse Events made in 40.10 can cause constant crashing and cook errors in 40.2. Crash also happens when attempting to load
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6
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16
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April 17, 2026
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Infinite ammo or mats when spectating
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1
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70
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April 17, 2026
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MVVM ViewBinding in UserWidget causes cook failure and permanently corrupts the widget
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6
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154
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April 17, 2026
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[Custom Inventory and Items] Server crashes when selecting `Use Item` on a custom item in the users hotbar.
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3
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63
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April 17, 2026
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[40.20] Missing Parameter in UI Events
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1
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17
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April 17, 2026
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UI Input events TriggerActivationEvent firing twice on trigger.
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1
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38
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April 17, 2026
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basic_interactable_component is now still visible after disabling the component in Scene Graph
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1
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38
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April 17, 2026
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Not recieving skin
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0
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6
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April 17, 2026
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Custom Inventories UI on mobile is not working
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2
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19
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April 17, 2026
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Editor FPS drops drastically just by clicking on certain devices
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1
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8
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April 17, 2026
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Dial-A-Drop is bugged.
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3
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53
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April 17, 2026
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Cell Shaded Skins have incorrect reflections on Mirrors.
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12
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64
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April 17, 2026
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[Critical] Creative Maps forcefully unload when taking a large amount of damage around a large number of props.
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9
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66
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April 17, 2026
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SIDE SCROLLER DEVICE
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17
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83
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April 17, 2026
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[REPLAYS] Speed up and slow down options are broken for replays after the recent update
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1
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7
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April 17, 2026
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Controls for Save the World mode
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1
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17
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April 17, 2026
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Editor Crashes When Saving Project
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2
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16
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April 17, 2026
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Failed to download / load Referenced Content
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0
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6
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April 17, 2026
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[Bug] Perception Trigger Device plays undisableable detection sound on activation and line-of-sight events
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1
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15
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April 17, 2026
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Players don't always load in with a Pickaxe
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12
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142
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April 17, 2026
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CAPTURE ITEM SPAWNER - NOT DISPLAYING ITEM WHEN ENABLED MID ROUND
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0
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8
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April 17, 2026
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Severe Performance Degradation When Adding/Removing Prefab Entities After UEFN V38.0 Update
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13
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719
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April 17, 2026
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[Verse Enhanced Input] Inputs APIs are no longer sending input events
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4
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85
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April 16, 2026
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Using SetMesh on a prop with FortPhysics stops physics from working on the prop
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3
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51
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April 16, 2026
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Enable VFX and SFX was turned on for Triggers and Mutator Zones
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4
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84
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April 16, 2026
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