Unreal Engine Issues
Unreal Engine Issues
Failed Import for Spline Component Error Appears on Restarting Level
UE - Gameplay - Blueprint - Jul 5, 2016When creating and declaring a Spline Component in code, placing an instance of a blueprint derived from that class in the level causes a failed import message to appear upon restarting the level. ...
World Initialization is performed on Transition World if the client's process is halted at a certain point
UE - Networking - Apr 12, 2016A user reported an issue where, if a client hitches during world transition, the client will continue referring to the transition world instead of the newly created one. This will result in the clie ...
FIOSInputInterface::SendControllerEvents crash due to UIInterfaceOrientation call from game thread
UE - Platform - Mobile - Apr 29, 2020From [Link Removed], licensee reports We believe that querying the UIInterfaceOrientation via UIApplication on the game thread is the issue here. We have made changes to IOSInputInterface.cpp and I ...
AddChildActorComponent in Construction Script Causes Pending Kill Error
UE - Gameplay - Blueprint - Feb 16, 2016When using AddChildActorComponent in the construction script of an actor and attempting to get a reference to the child actor that is stored in a variable on Event Begin Play, the editor throws erro ...
Details panel for Actor Component is blank in any Blueprint that derives from a code class using that Actor Component after the Actor Component's class name is changed
UE - Gameplay - Blueprint - Dec 20, 2018Changing the name of an Actor Component code class in a project results in any existing Blueprints that derive from code classes that use that Actor Component to not display the Actor Component's pr ...
Unexpected behavior occurs when the default elements of a TMap in an Actor Component are modified in an instance of a Blueprint containing that Actor Component
UE - Gameplay - Blueprint - Jan 17, 2017Adding an Actor Component that contains a TMap property to a Blueprint results in unexpected behavior when default elements of the TMap are modified in an instance of the Blueprint in the level:Addi ...
FSlateApplication::OnControllerAnalog triggers a MouseLeftClick event to be added to the input stack.
UE - Gameplay - Input - Jun 3, 2016It appears that FSlateApplication::OnControllerAnalog triggers a left mouse click to occur on mobile platforms. If developers haven't properly avoided hooking up delegates to the InputComponent for ...
Building Nanite on a Landscape with Visibility Mask multiple times gives an Assert
UE - LD & Modeling - Terrain - Landscape - Aug 28, 2023Repro Rate 15/25 Regression set to Yes as this was not found on //UE5/Release-5.2 CL 26001984 Binary Building Nanite with a Landscape that has a material including Landscape Visibility Mask still ...
Ribbon Particle Normals are reversed from default Sprite Particles
UE - Graphics Features - Oct 13, 2015It appears that the Vertex Normals from Ribbon Particles are opposite of what is expected via the Default Particle System given both systems share the same alignment (Facing Camera) [Image Removed] ...
Editor crash loading a Blueprint asset when a child scene component C++ type changes to a non-scene component type.
UE - Gameplay - Blueprint Editor - Jan 16, 2019Changing the type of an existing child scene component to be a non-scene component type triggers some fixup code at load time which attempts to remove the node from its current position in the scene ...