Unreal Engine Issues
Unreal Engine Issues
Project Crashes on Open when Implementing An Interface and Its Duplicate
UE - Gameplay - Blueprint - Apr 25, 2016The linked project crashes on open after attempting to implement an interface and a duplicate of that same interface with different function names. This has not been reproduced in a clean project, h ...
Assets with Render in Main Pass disabled show shadow artifacts
UE - Graphics Features - Apr 18, 2016This issue was originally reported specifically for Destructibles, but it appears to affect Skeletal Meshes, and static meshes when selected. When "Render in Main Pass" has been disabled skeletal an ...
Old property values can be applied when updating an unmapped reference in custom NetSerialize struct
UE - Networking - Apr 13, 2023This seems to be caused by the following:The struct, which has an actor reference property as well as some other properties, implements its own NetSerialize function.When the actor reference propert ...
FIntVector has some code that refers to it being two dimensonal
UE - Gameplay - Mar 10, 2016There is code in the FIntVector class (IntVector.h) that seems to be copied from the FIntRect class which is a problem since FIntRect is two dimensonal while FIntVector is three dimensional. The one ...
Lightmaps on Mobile Devices Appear Dirtied and Pixelated
UE - Platform - Mobile - Jun 19, 2015Baked lighting on mobile has dirtied or pixelated lightmaps. When testing this issue I attempted to change various settings within the 'Lightmass' section and the changes made did not have much effe ...
UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation
UE - Editor - Content Pipeline - May 1, 2025UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation. The K2Result is not used later in the function, and this ...
Access Specifies set to private displayed no warning when called
UE - Gameplay - Blueprint - Feb 21, 2017While using an access specifier for a function that is set to private, does not run the function, but it can be placed into another BP with no warning appearing when the BP is compiled. This issue ...
Rep Notify is not getting called on the client
UE - Networking - Jan 30, 2017I've been looking into replicating HMD movement across the network I found a thread where there was an example "MPRepro" to show the how to do this, but testing that example, I see behavior where ...
Mouse click requires double click to enter input if "Set Input Mode Game Only" used
UE - Editor - UI Systems - Slate - Oct 3, 2016Mouse click requires double click to enter input if "Set Input Mode Game Only" used Regression (no) issue (does) occur in 4.12.5 Notes The first box selected will light up correctly the first time ...
Mobile MSAA breaks Modulated Shadows on OpenGL ES 2
UE - Platform - Mobile - Apr 2, 2018UPDATED DESCRIPTION When enabling Cast Modulated Shadows on a Directional Light and using Mobile MSAA on Android OpenGL ES 2, shadows from the Directional Light do not render when dynamic objects ar ...