Unreal Engine Issues
Unreal Engine Issues
Crash when manipulating Bone Space IK before setting EffectorSpaceBoneName
UE - Anim - Rigging - Feb 9, 2017Error message: Assertion failed: Pose.IsValidIndex(BoneIndex) [Link Removed] [Line: 528] Source Context: 513 const FTransform& ParentTransform = GetComponentSpaceTransform(ParentIndex); ...
Translucent materials in the PostMotionBlur pass can cause a flickering viewport artefact when using TAA
UE - Graphics Features - Feb 5, 2025There appears to be a bug relating to rendering multiple windows that can trigger under unknown circumstances. It has been reported on rectangle lights in the forums and on PostMotionBlur materials ...
FIXIF: Using the Merge Blueprints feature crashes the editor
UE - Gameplay - Blueprint - Feb 18, 2015Using the Merge Blueprints feature crashes the editor. This repro is for clicking between the error and warnings while merging, but the editor will generally crash if the Merge is finished or if an ...
Properties not serialized when moving actor/component depending on unrelated specifiers
UE - Framework - Blueprint - Sep 25, 2023When an actor is moved on the level editor viewport, it is reconstructed along with its components, which at first makes their properties reset to their default state. Thankfully, this does not happ ...
Blueprints break when implementing a duplicated BP interface along with the original
UE - Framework - Blueprint - Mar 1, 2024When duplicating a blueprint interface, the GraphGuids of the original BP interface's function graphs are unchanged: function graphs across the two BP interfaces now have the same GraphGuid. This is ...
Set Members in Struct node doesn't work if the Struct is contained within an Array
UE - Gameplay - Blueprint - Dec 9, 2014Set Members in Struct node doesn't work if the Struct is contained within an Array. ...
When importing an FBX with Combine Meshes = False, one uasset will be created for the collection of assets.
Tools - Feb 4, 2016When importing a mesh, there is an option to Combine Meshes, which by default is checked. Unchecking this option will bring in the individually named parts contained in the FBX as unique objects in ...
Users Unable to create C++ Projects
UE - Foundation - Core - Mar 6, 20152nd AH post with the same issue: https://answers.unrealengine.com/questions/183441/cant-load-c-projects.html Multiple people have reported not being able to create a C++ project. Creating a Bluepr ...
[CrashReport] UE4Editor_CoreUObject!FScriptArrayHelper::EmptyAndAddUninitializedValues() [unrealtype.h:2703]
UE - Gameplay - Blueprint Compiler - Aug 15, 2017This is a trending crash coming out of the 4.17.0 release. Based on user descriptions, this crash occurs on Play or Compile for affected users. User DescriptionsAgain crashing when I hit playIF I C ...
Add Submix Effect Blueprint Does Not Have Any Effect
UE - Audio - Dec 11, 2020Adding a second effect to the Submix Effect Chain on a Submix works as expected, but when trying to add a Submix Effect via Blueprint, there is no effect. This also applies to "Add Master Submix Ef ...