Unreal Engine Issues
Unreal Engine Issues
Linked Anim Layer node can become stuck in a single state when attempting to change the Layer
UE - Anim - Runtime - Anim Blueprints - Oct 25, 2022When swapping Layer settings between various Animation Layers on a Linked Anim Layer node, the node can become stuck in one state. The node will become stuck in the Linked Anim Layer state and canno ...
Property Editors fail to select assets within paths containing valid non-alphanumeric characters
UE - Editor - Workflow Systems - Sep 20, 2024Property Editors for asset types allow you to drag assets from the Content Browser into them, or to make a selection using an Asset Picker widget. Some examples would be selecting Static Meshes or M ...
OnRep_ReplicatedAnimMontage causes popping when montage ends
OLD - Anim - Oct 8, 2016UAbilitySystemComponent::OnRep_ReplicatedAnimMontage doesn't handle some edge cases when stopping the montage when blending is involved. Namely, it's possible on a client (due to latency, etc.) that ...
Skeletal Meshes load unused textures into memory from hard referenced assets. (Skeleton, Physics Assets)
UE - Foundation - Core - UObject - May 1, 2019Physics Assets & Skeletons referenced by the skeletal mesh will load materials & textures from their default skeletal meshes into the statistics window. Either the statistics window is incorrect abo ...
Landscape BP Brushes in WP map causes changelist validation to fail
UE - Graphics Tools - Terrain - Landscape - May 13, 2022Using a Landscape BP brush in a WP map causes SCC validation to fail: [2022.05.13-09.04.47:880][473]SourceControl: Error: Changelist validation failed! [2022.05.13-09.04.47:881][473]SourceControl: ...
PCG: Unable to use Attribute property overrides to target nested struct properties, such as BodyInstance.CollisionProfileName due to how it's validated in PCGMeshSelectorByAttribute.cpp
UE - World Creation - Procedural Tools - PCG Workflow - Jun 17, 2025Context: Static Mesh Spawner is used to spawn one static mesh per point in the provided point data. PCGMeshSelectorByAttribute is used to select an entry based on an attribute present on the mesh. ...
iOS Remote Build fails with Date/Time set to Certain Locales
UE - Platform - Mobile - Jan 21, 2019Date/Time formats using commas instead of semicolons will cause iOS compile to fail. "LogPlayLevel: Error: ERROR: System.FormatException: Input string was not in a correct format." Similar Unk ...
The packaged build of a project that has a strong pointer initialized to nullptr immediately closes on launch
UE - Foundation - Core - Aug 2, 2019When a strong pointer is set to null the packaged build of the game will immediately close. No crash logs were were made and no Saved folder was made (<Project Name>/Saved/Logs). An example project ...
Packed level blueprint does not behave as noted in documentation.
UE - World Creation - Worldbuilding Tools - Nov 28, 2022In the documentation page: [Level Instancing in Unreal Engine | Unreal Engine 5.0 Documentation|https://docs.unrealengine.com/5.0/en-US/level-instancing-in-unreal-engine/] it is mentioned that: [ ...
Packaging failed after create EditorUtilityBlueprint asset inherited EditorTutorial class
UE - Editor - UI Systems - Oct 14, 2021Whenever creating the EditorUtilityWidget asset with EditorTutorial as the parent class, the packaging will fail. If the tutorial is not launched the package will succeed. But launched, it will fail ...