Unreal Engine Issues
Unreal Engine Issues
Altering interface outputs/inputs causes compile errors on blueprints calling interface
UE - Gameplay - Blueprint - Sep 4, 2015If an interface is called in a blueprint and then altered, the blueprint will receive a compile error until the interface is removed and re-implemented. ...
UMG Textblock with no font drops FPS by ~30
UE - Editor - UI Systems - Feb 21, 2015FPS drops in PIE when a widget is called that has text with no font selected. ...
Alpha channel should not be weighted when using "masks (no sRGB)" texture compression setting
UE - Graphics Features - Nov 11, 2015When attempting to import a texture that has a non-opaque alpha content and compressing using the "masks (no sRGB)" texture compression setting, pixels that are in the alpha channel are being weight ...
OnComponentEndOverlap and GetOverlappingActors are not in sync
UE - Gameplay - Dec 23, 2014GetOverlappingActors will return a value when used immediately after OnComponentEndOverlap. Putting a delay after the OnComponentEndOverlap call will result in GetOverlappingActors to return null, s ...
[CrashReport] UE4Editor_Foliage!FMulticastDelegateBase<FWeakObjectPtr>::AddInternal() [multicastdelegatebase.h:113]
UE - World Creation - Worldbuilding Tools - Foliage - Jul 6, 2017This is a common crash in the 4.16 release. The callstack is similar to [Link Removed], but that was fixed in 4.16.2 while this crash still occurs. Users have not provided any additional informati ...
[CrashReport] UE4Editor_OnlineSubsystemUtils!LastGetVoiceCallTime()
UE - Foundation - Core - Jul 19, 2017This is a common crash in the 4.16 release. Affected users have not provided additional information. Source Context 1795 // Some tasks can only be done once we finish all scenes/viewports ...
Editor Crash When DFAO Viewport Has Zero Area
UE - Graphics Features - Apr 19, 2018I've reproduced this crash in 4.16, 4.17, 4.18, 4.19, and Main. Per licensee: The editor crashes if distance field ambient occlusion is enabled and a viewport is resized to have zero height. Th ...
Reading LightAttenuationTexture Produces Unexpected Results With Forward Rendering
UE - Graphics Features - Jul 5, 2018The expected behavior occurs in 4.19; unexpected behavior occurs in 4.20 and 4.21. Marking this as a regression. Per User: Reading the LightAttenuationTexture in a material receives interference ...
Remove reference to editor assets in cooked build from landscape visibility layer
UE - LD & Modeling - Terrain - Landscape - May 21, 2020As soon as the visibility tool is used, we're adding references to the "/Engine/EditorLandscapeResources/DataLayer" asset from landscape components. If the user decides to cook without editor data ...
Editor will crash on attempt to load a previously-saved Blueprint asset with a serialized default subobject containing a serialized static array of two or more nested subobject instances.
A crash will result if a Blueprint class that's based on a native C++ class containing two or more nested, explicitly-instanced subobjects referenced by a fixed-size object array property are serial ...