Unreal Engine Issues
Unreal Engine Issues
Build Plugin process fails with null reference exception when building a plugin that has "Can Be Used With Unreal Header Tool" set to true
UE - Foundation - Cpp Tools - Dec 18, 2018Trying to use UAT to build a plugin that has CanBeUsedWithUnrealHeaderTool set to true will fail due to a null reference exception (log from Main CL 4666322 attached). This happens because the plugi ...
AddComponent node fails to be scheduled after adding an "expose on spawn" variable to an ActorComponent-based Blueprint Class.
UE - Gameplay - Blueprint - Nov 13, 2015If an existing AddComponent node is placed in an Actor Blueprint's Event Graph for a custom ActorComponent-based Blueprint Class, the node will fail to be scheduled after adding a variable marked "E ...
Instanced Properties remain after compile
UE - Gameplay - Blueprint Editor - Jan 25, 2018Our team has been using property instances, and have run into several problems. We were able to reproduce one of the problems, and I was hoping to have your team look at it. General scenario. We ha ...
FSkeletalMeshRenderData::Cache doesn't store and restore versions
UE - Anim - Rigging - Aug 18, 2022A licensee was trying to extend the FSkelMeshSection, FSkelMeshRenderSection and USkeletalMesh serialisers with their licensee version number and found that the FSkeletalMeshRenderData::Cache functi ...
Compiling blueprint with nested subobjects loses data
UE - Gameplay - Blueprint - Jan 25, 2018The attached project is from a licensee who made a Quest system where a blueprint has several ConditionContainer instanced subobjects, that contain EdGraphs with custom question condition nodes. On ...
User Defined Enum Display Names aren't deterministic for localization/cooking
UE - Editor - UI Systems - Localization - Feb 1, 2016UUserDefinedEnum contains an array of FTexts which are supposed to be used as localized display names, however these are populated from the underlying UEnum type using the meta-data on the object. T ...
If using Launcher build, Advertising Identified (IDFA) code for iOS can NOT be disabled by project settings
UE - Platform - Mobile - Jun 18, 2019By [Link Removed], user can disable IDFA without customizing engine code. But, if using Launcher build, the added settings( Enable Advertising Identified(IFFA) ) does NOT work correctly. Because eng ...
Geometry collection - source geometry not updating and reset bug
UE - Simulation - Physics - Aug 17, 2023This issue was reported by a customer trying to modify the static meshes of a GeometryCollection. After removing some meshes from the Geometry Source, he used the Reset button to apply the changes t ...
Editor crash when enabling Distance Field AO Visualization in the Forward Renderer
UE - Graphics Features - Jan 9, 2017When forward rendering is enabled along with Mesh Distance Fields if you go to visualize Distance Field AO in the main viewport the editor will crash. This only affects the Forward Render and works ...
Editor Crashes on Opening After Deriving C++ Class from Another Class
UE - Foundation - Cpp Tools - Hot Reload - Sep 13, 2017After deriving a C++ class from another class and then closing the editor, the project will crash when reopened. This crash will continue until the project files are regenerated and the project is r ...