Unreal Engine Issues
Unreal Engine Issues
Android Vulkan SM5 crash at startup
UE - Platform - Mobile - Systems - Sep 6, 2021Iris - replication errors for actors in runtime data layer when reconnecting
UE - Engine Scaling - Streaming - Data Layers - Mar 28, 2025It seems like upon reconnecting to the server, the client receives a bunch containing the actor before it has loaded the data layer. See attached log snippet for errors. ...
Build failure packaging for android with GoogleVR plugin enabled
UE - Platform - XR - Oct 12, 2016Android is failing to package when GoogleVR is enabledUATHelper: Packaging (Android (ATC)): UnrealBuildTool: BUILD FAILED UATHelper: Packaging (Android (ATC)): UnrealBuildTool: C:\NVPACK\android-sd ...
CRASH: Editor Crashes When Playing In Split Screen With Planar Reflections
UE - Graphics Features - Feb 27, 2017When using planar reflections in a scene if you attempt to play in split screen the editor will crash immediately. This crash did not occur in 4.13 using the same steps. ...
Networking Engine Tests fail for NotifyParamCorrect on Client
UE - Networking - Oct 2, 2019The following errors occur when running the networking engine tests with 2 clients and a dedicated server. LogFunctionalTest: Error: Assertion failed: 'EngineTestNetActorComponent bRepArrayAddNotif ...
Normal of Skeletal Mesh is incorrect when Recompute Tangent is used when Skincache is enabled
UE - Graphics Features - Aug 12, 2020This issue occurs in Skeletal Mesh depending on the model when Skincache is enabled and affects the rendering. ...
incorrect virtual texture shader code(in FinalizeVirtualTextureFeedback) on Mobile forward platform
UE - Graphics Features - Mar 15, 2021in the function FinalizeVirtualTextureFeedback, the micro "USE_DBUFFER && MATERIALDECALRESPONSEMASK" returns true on mobile forward, while there is no DBUFFER on Mobile forward obviously. This takes ...
StartPlayInEditorGameInstance doesn't consider bStartInSpectatorMode for client instances
UE - Framework - Networking - Nov 15, 2022In UGameInstance::StartPlayInEditorGameInstance, the server instance will go through the normal process of creating the URL using BuildPlayWorldURL, which checks the FGameInstancePIEParameters' bSta ...
Mesh Reshape node with modified geometry from another skeleton explodes mesh.
UE - Runtime - Mutable - Mar 31, 2026Using the mesh reshape node with seperate meshes produces a broken mesh. An example project: Most if not all clothes will be originally made to fit the Average Male body. I'm trying to morph a tu ...
Cannot negatively scale objects in editor with scaling widget
Tools - Mar 18, 2015Objects do not react well to negative scaling with the scaling widget. Once an object hits 0 then pushes into negative values it begins stuttering between small float values until the user stops goi ...