Unreal Engine Issues
Unreal Engine Issues
Native struct types that declare one or more non-UPROPERTY fields are not initialized with the default value from a modified Blueprint CDO.
UE - Gameplay - Blueprint - Feb 12, 2020Dynamically-spawned instances of a Blueprint class go through an optimized property initialization pass (see UBlueprintGeneratedClass::BuildCustomPropertyListForPostConstruction() and InitProperties ...
Unable to Import Alembic Files in UE4
UE - Editor - Content Pipeline - Import and Export - Feb 25, 2020We have written a plugin for UE4 that allows Unreal users to import and set up Megascans assets into Unreal Engine. Recently we added Alembic files to our assets and also updated all our plugins to ...
Crash/ensure when linking anim layers from animation update
OLD - Anim - Mar 12, 2020Originally reported here: https://udn.unrealengine.com/questions/562047/linked-layer-animation-blueprint-proxy-missing-ske.html When linking an anim layer during update, we get either an ensure or ...
BuildPlugin command cannot build plugins with platform extensions
UE - Foundation - Cpp Tools - Automation Tool - Jun 17, 2020It seems like the BuildPlugin command is not copying all the dependencies in the HostProject. Here are the errors reported by a customer: DynamicCompilation.RequiresCompilation: Compiling D:\Per ...
New C++ Class (actor) fails to build
UE - Foundation - Cpp Tools - Mar 8, 2022While trying to create a C++ actor to test if it can be created with a custom Copyright notice specified in Project Settings, the Live Coding window returns a "Build failed" and error of: "ERROR: U ...
Restricted Gameplay Tags cannot be added
UE - Gameplay - Mar 15, 2024The Gameplay Tags settings have the option to set up restricted tags as described in the documentation. Prior to 5.3, the UI correctly supported creating new restricted tags as described in the old ...
Creating Actors as default subobjects causes crash (casting Outer to Level)
UE - Gameplay - Mar 18, 2016If two custom classes are created in C++ (Class A & B) and a reference to Class A is created as a member of Class B and initialized in Class B's constructor, the editor will crash once a blueprint o ...
Split Pins on a referenced Macro Library will crash the editor on restart
UE - Gameplay - Blueprint - Mar 3, 2016Split Pins on a referenced Macro Library will crash the editor on restart 2 callstacks include, one for 4.10.4 and one for 4.11 Preview 6 User Description: I got some macros in my Object Macro Li ...
Importing through Python fails
UE - Editor - Content Pipeline - Import and Export - Feb 20, 2019Version 4.21:The script result in popping the Alembic Import windows instead of a silent importThe provided options are ignored by the importer. Version 4.22: Results in the provided callstack wi ...
GameThread + AsyncLoadingThread deadlock - StaticLoadObject vs. StaticAllocateObject
UE - CoreTech - UObject - Feb 14, 2023User reported encountering a deadlock between GameThread and AsyncLoadingThread and provided two callstacks.User quote I've been running into a deadlock intermittently with a custom blueprint conso ...