Unreal Engine Issues
Unreal Engine Issues
HZB Setup Mips taking considerable time in GPU Visualizer
UE - Graphics Features - Jul 19, 2016HZB Setup Mips in the GPU Visualizer seems to be taking considerable ms in 4.12 and 4.13 compared to 4.11.2. This seems to mostly affect editor/PIE GPU Visualization but looks like it should when ...
Editing a specific LOD and then using Remesh causes geometry to disappear
UE - Graphics Tools - Modeling Tools - Apr 13, 2023from licensee:"Expected behavior: The LOD selected to be edited should be saved correctly, allowing different remesh results to be saved as different LODs of the same mesh, _i.e. remesh with 1 cm t ...
Actor attached to other actor in LevelInstance has very large bounds
UE - World Creation - Worldbuilding Tools - Level Instances - May 26, 2023Attached actors do not return to LevelInstance space at the end of LevelInstance editing, and bounds contains level instance offset location. This results in huge bounds. My workaround is: void FL ...
VS fails to compile when USTRUCT is referenced as BlueprintReadWrite or BlueprintReadOnly
UE - Foundation - Cpp Tools - UnrealHeaderTool - Aug 22, 2017Defining a FBoneReference variable as BlueprintReadWrite or BlueprintReadOnly in the UPROPERTY macro fails to compile in 4.17. The error message provided by VS states: LogCompile: Error: Type 'FT ...
Ctrl+Alt selection drag inside to outside of Matinee window will crash the editor
Tools - May 18, 2016Ctrl+Alt selection drag inside to outside of Matinee window will crash the editor Reproduced in Releases stream 2982080 as well, to verify that this wasn't the same bug as https://jira.ol.epicgames ...
Destructible cannot change collision profile at runtime via Blueprints
UE - Simulation - Physics - Destruction - Jan 6, 2015DESCRIPTION: When attempting to change the collision profile of a destructible via Blueprints it will not set appropriately. The collision profile set via the details panel for the individual object ...
The Find Node Can Crash on Compile After a Blueprint Compile Error
UE - Gameplay - Nov 21, 2019The "Find" node can cause a crash if the a map with a struct value changes type while connected, is disconnected and reconnected. Compilation fails and crashes the engine. Found in 4.23.1 CL#963142 ...
AnimNotify Issue with LevelSequencer Actor with URO
UE - Anim - Runtime - Anim Blueprints - May 19, 2025Sometimes AnimNotify does not fire when an animation is executed under the following conditions. 1. The CharacterMesh's AnimationMode uses UseAnimationAsset 2. CharacterMesh's URO is enabled (Enable ...
Updating a meshes UCX collision in an FBX will not reimport with the updated collision if it's been removed
UE - Editor - Content Pipeline - Import and Export - Jan 14, 2015DESCRIPTION: When making a mesh with custom collision with the naming convention of UCX and exporting the FBX for use in UE4 the collision will import and update if any changes are made and reimport ...
Crash in a packaged project when loading into a level after a nativized Anim BP grabs a PoseSnapshot using a FName
OLD - Anim - Oct 25, 2019In packaged projects will crash when an animation blueprint that is nativized loads into a new level. The anim blueprint needs to use the PoseSnapshot node with a FName variable passed before loadin ...