Unreal Engine Issues
Unreal Engine Issues
UClass::SparseClassDataStruct null at editor-time for child blueprints until compile
UE - Framework - Blueprint - May 29, 2024Child blueprints of a blueprint of a native actor class with sparse data can have an incorrectly null SparseClassDataStruct value, and thus fail to initialzie their SparseClassData. This affects edi ...
BP - Editing defaults on a nested subobject of a component inherited from a native parent class won't preserve those defaults when the BP is instanced.
UE - Gameplay - Components - Jan 19, 2017I think the issue is that in GetInstancedSubobject() (CoreNative.cpp), the following bit of code is not considering that the instanced subobject might be outered to another instanced subobject withi ...
Instanced property is not updated when property is changed inside the blueprint
UE - Gameplay - Blueprint - May 18, 2017Clearing the value of a native component's instanced property does not update placed blueprint instances of the property Regression: No - same behavior occurs in 4.14.3 (CL 3429277) ...
BindWidget meta tag throws error on compile if the bound widget is inherited
UE - Editor - UI Systems - Jan 15, 2018The BindWidget meta specifier allows us to bind a native widget pointer to a widget added to the hierarchy of a UserWidget in the widget editor. However, it appears to only search for a matching wid ...
Template Mismatch during attachment ensure on Blueprinted scene components
UE - Gameplay - Blueprint - Mar 6, 2020Ensure hit when adding a Blueprinted scene component that derives from a native component that has its own subcomponent. This does not occur when adding the native component, only when adding the bl ...
Packaging Fails When Media Player->Open Source is Used in C++
Media Framework - Sep 13, 2016When attempting to use a media player asset in code, packaging will fail with the error message shown below. Could not find a native player for [...]4.13/Content/Movies/Tutorial.wmv This occurs ev ...
Open Level Crash in Gear VR
UE - Platform - XR - Oct 5, 2016Projects using Open Level (blueprints) or ServerTravel (in C++) will crash the application once it's open on a device using Gear VR Mode. 10-05 18:01:46.451: A/art(19619): sart/runtime/check_jni.cc ...
SCS child scene component instances can be registered out-of-order with non-scene component instances (regression).
UE - Gameplay - Components - Sep 7, 2016This behavior is a regression in 4.12. Essentially we switched to attaching child components as part of the OnRegister() logic. This caused all root-level SCS components (including non-scene compone ...
GameplayTag Query on Component Instance resets when reloading level
UE - Gameplay - Components - Jun 14, 2018GameplayTagQuery variables - when inside of a component, are not saved. User notes: "Note that this does not occur if the ActorComponent is added in code in a native actor and that the actor at S ...
After upgrading a project from 4.7 to 4.8 and compiling a blueprint that casts to and pulls a variable from a widget will cause a freeze if the widget is then compiled
UE - Gameplay - Blueprint - May 7, 2015If the user has a project that casts to a widget to pull out a variable in a 4.7 project. This can cause a freeze after upgrading the project to 4.8 preview. This happens when the user compile the b ...