Unreal Engine Issues
Unreal Engine Issues
[bug] OIT doesn't work correctly with alpha composite blend mode
UE - Graphics Features - Substrate - Mar 4, 2025When using OIT, AlphaComposite Materials blend as if they are using the Translucent BlendMode. The order of macro #if … #elif cases cause AlphaComposite Materials to take the same route as Transluce ...
Packaging will fail if the Nativize Blueprint Assets option is used in a project containing a third-party plugin
UE - Gameplay - Blueprint Runtime - Jul 15, 2016If a third-party plugin is present in a project that is being packaged with the Nativize Blueprint Assets option turned on, the packaging process will fail because necessary header files in the plug ...
When Packaging a Blueprint Nativized Game, Child Actor BeginPlay is ignored and Parent BeginPlay is triggered instead
UE - Gameplay - Jul 5, 2018In a Blueprint Nativized Packaged Game a child Blueprint will trigger its parent logic instead of its own when it is called. This was reported in 4.20 Preview 5 (CL-4173640). This issue has been r ...
[MetaSounds] [Asset Importing] - Can't Import Wave Files Created from MetaSound Wave Writer
UE - Audio - MetaSounds - Jul 8, 2022Wave files created by the Wave Writer nodes in MetaSounds cannot be imported successfully into the engine. On my end, wave files created by Audacity could be imported successfully, so there does see ...
UMG Visibility binding resets to default after closing and reopening project first time
UE - Editor - UI Systems - Aug 31, 2017UMG Visibility binding resets to default after closing and reopening project first time. "Get Visibility" on Button click boolean toggle for widget blue print "False" return node value gets automa ...
Compilation fails after binding an event to a server-only delegate property in the Blueprint editor.
UE - Gameplay - Blueprint Editor - May 24, 2019Attempting to bind a custom event to a server-only delegate property currently fails to validate after compiling a Blueprint. ...
Structs in the Instance Settings for a Static Mesh in the Foliage Fill tool are not editable.
UE - World Creation - Worldbuilding Tools - Foliage - Dec 17, 2014Adding a struct to the foliage panel results in the struct not being editable for a static mesh instance. The same struct is editable if applied to a PrimitiveComponent. ...
Player state on clients does not get set properly
UE - Networking - Jul 23, 2015When playing in Standalone with multiple characters there's the the chance that one of the player states does not get set and remains null. This is not a 100% repro case. Multiple tests may be req ...
UEdGraph pointer data is not correctly un-done and graph nodes are lost when declared as a UObject property
UE - Framework - Blueprint Editor - Aug 9, 2024When an undone operation is done for a UObject property that has a UEdGraph*, the modified UEdGraph nodes are lost. This UObject needs to be created/spawned in an Editor Environment by another Obje ...
Crash in RHIBreadcrumbs during loading of Bundled PSO Cache if capturing an Insights trace on Win64 Development
UE - Rendering Architecture - RHI - Feb 17, 2025When compiling a PSO, RHI Breadcrumbs can be fed a bad FRHIBreadcrumbNode, resulting in reading random memory and crashing during the recursive node iteration. This only happens when tracing. The i ...