Unreal Engine Issues
Unreal Engine Issues
StructUtils plugin's `FInstancedStruct` in a CPP-defined struct in a `TArray` on an actor component defined in CPP and implemented in BP. Populating the instanced struct in an actor BP's class defaults breaks serialization of the class defaults.
UE - AI - May 30, 2025Context Instanced structs are great for holding simple data with the main advantage they have is a low memory overhead unlike instanced objects. Problem The problem is in StructUtils plugin's `FIns ...
Animating blueprint mesh duplicates uncontrollably
UE - Gameplay - Components - Apr 15, 2015When animating within a blueprint of a subclass created in c++, the animating mesh replicates itself uncontrollably. Added to .h: UPROPERTY() UBoxComponent* BoxComp; UPROPERTY() USkeletalMeshCompo ...
Enum Meta is being ignored when project is packaged
Tools - Nov 4, 2014When using UMeta on Enums, text is ignored when doing Enum to String on a packaged project. ...
After Seamless Server Travel, the Client cannot move the character or see the Server character
UE - Networking - Jul 9, 2015After Seamless Server Travel, the Client cannot move the character or see the Server character. On the Server, the Client character appears to be falling in place. Tested in both first and third per ...
Packaged iOS project incorrectly includes level not selected to be cooked
UE - Foundation - Core - Cooker - Oct 11, 2017When packaging for iOS on a Mac, the default level for a project will always be included in the packaged project even if it was not selected to be cooked and packaged. The expected behavior is that ...
UFE Deploying and launching a packaged build on Linux fails due to invalid directory
UE - Platform - Linux - Dec 22, 2016Deploying and launching a packaged project, using a Custom Launch Profile that is set to copy the project to a repository, fails due to a missing /. I do not see this issue when running a Quick Lau ...
Overlap trigger on Event Begin Play doesn't work after converting project from 4.7.6 to 4.8 P2
UE - Gameplay - May 18, 2015Overlap trigger on Event Begin Play doesn't work after converting project from 4.7.6 to 4.8 P2. The user thought this was related to using Custom collision object types but it is reproducible with ...
Destructible attached with a Physics Constraint have inconsistent physics
UE - Simulation - Physics - Destruction - Jul 26, 2016Destructible attached with a Physics Constraint have inconsistent physics compared to a standard Static Mesh. This is also sometimes prevalent with Destructibles that aren't attached with a Physics ...
changing localization does not change text in PIE
Tools - Sep 10, 2015When switching localization for testing, text does not change language in PIE. ...
Python function unreal.AssetRegistry.get_assets_by_class is broken
UE - CoreTech - Nov 21, 2022Repro Rate: 3/3 This issue was reproduced in //UE5/Release-5.1 at CL 23058290. This is confirmed to be a regression since the errors do not occur on the previous version and is regression tested o ...