Unreal Engine Issues

No warning is shown when a disabled mobile shader permutation is required for rendering

bIsComposing assert with Japanese MS-IME input(candidate list related)

When using MS-IME as Japanese input method, scrolling out the text field out side the view causes bIsComposing to be set false - this state causes instability of the editor. Crash happened with Win ...

UWorld::AttemptDeriveFromPlayInSettings() Returns Incorrect Net Mode

UWorld::AttemptDeriveFromPlayInSettings() is returning NM_Dedicated server when Use Single Process is disabled in the play settings and the Editor Multiplayer Mode is set to Play as Listen Server. ...

When encrypt assets and packaging ,crash at game startup

When ShooterGame project is packed from RunUAT.bat, if you give encryption option, crash occurs at game startup. Without granting the encryption option crash does not occur. This occur. This problem ...

MSAA breaks post process material comparing Scene / Custom Depth

The expected behavior for the attached project is to highlight meshes / portions of meshes that are obstructed from view. When using MSAA, the entire mesh is highlighted rather than only the obstru ...

Collision problem in nativized blueprint

Issue reported by one of our licensee on the Japanese UDN https://udn.unrealengine.com/questions/480660/view.html ...

Setting Fullscreen Mode to "Fullscreen" results in Crash when using 4.23 from source

Changing the screen settings to Fullscreen through code or blueprints results in a crash. This only happens in the source version of 4.23 and does not occur in the binary version of 4.23. I have att ...

Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

HLOD lightmap lost after level reopening with "save LODActors to HLOD Packages" option in project settings is on.

Editor Crash when changing Default Properties of a TArray of UStucts containing an InlineEditConditionToggle property in Blueprint Parent Class

This bug causes an editor crash. This crash occurs when changing the default values of a UStructs properties that are used as EditConditions, when they are set to InlineEditConditionToggle within a ...