Unreal Engine Issues
Unreal Engine Issues
InstanceOnly properties are written to a Blueprint
UE - Gameplay - Blueprint - Sep 17, 2018When CopyActorProperties is used with a target being a template such as a blueprint, it can copy and serialize EditInstanceOnly Properties. ...
Editor Freezes after the user attempts to set a NewSpriteAtlasGroup to an imported sprite
UE - Editor - Workflow Systems - Apr 19, 2023By setting an Atlas Group to a newly created sprite, the editor freezes. This feature is most important, even if this issue can only be reproduced by a minority of users. Repro rate: 5/5 Notes:No ...
GeneratePsyms fails with installed builds due to missing dymp_syms tool and incorrect path space handling
UE - Platform - Apple - Nov 14, 2024Uncovered while testing [Link Removed] ...
Packaged plugins yield different results when opening a project it was added to depending on whether the Engine was built from source code or binary
Tools - Jun 8, 2017Packaged plugins that are added to projects that were made with an Engine built from source code will indicate that the plugin .dll needs to be built. If the plugin was created and packaged using a ...
Always Relevant actor may replicate incorrect movement mode when the walkable floor becomes irrelevant
UE - Gameplay - Player Movement - Feb 26, 2024When the character class is set to always relevant, if a client travels very far away from another character, such that the character is relevant but the component they're standing on is not (but al ...
FBlackboardKeySelector filters aren't applied when recompiling blueprint if a behavior tree asset containing the blueprint added as a service is closed, or if the blueprint is reparented.
UE - AI - BehaviorTree - Sep 24, 2025Context In Behavior Trees, BT Services can be added to nodes. Those services can have configurable FBlackboardKeySelectors. BlackboardKeys are variables on a blackboard that the behavior tree can r ...
Parent component visibility in a child blueprint isn't reflected in a launched project.
UE - Gameplay - Blueprint - Mar 5, 2015Parent component visibility in a child blueprint isn't reflected in a launched/packaged project. ...
[CrashReport] UE4Editor_Renderer!FMaterialShader::SetParametersInner<FRHIVertexShader * __ptr64>() [shaderbaseclasses.cpp:181]
UE - Graphics Features - Jun 19, 2018No user comments in crash group 172 const bool bOverrideSelection = 173 GIsEditor && 174 !View.Family->EngineShowFlags.Selection && 175 (MaterialRenderProxy- ...
Planar Reflections Not Behaving As Expected in Splitscreen
UE - Graphics Features - Dec 19, 2018This occurs in //UE4/Main @ CL 4670176 Not a Regression. This is similar to https://jira.it.epicgames.net/browse/UE-59149 but when adding more player characters it seems to change the planar reflec ...
Using Delay with Tick when Paused doesn't work
UE - Gameplay - Blueprint - May 28, 2015Using a delay node in an event graph of actor using tick when paused will not work. It pauses the delay node. ...