Unreal Engine Issues
Unreal Engine Issues
Crash Occurs When Using Move Component To and Overlap Event
UE - Gameplay - Jan 29, 2016When using move component to to move a component, and then calling Destroy Actor when the actor overlaps another actor, a crash occurs. In this case, the user was attempting to move their static m ...
Native default subobjects nulled in child Blueprints on compile
UE - Gameplay - Blueprint Compiler - Oct 25, 2021From reporting UDN: "We had a weird issue with new components added in C++ not being instanced properly on non-direct Blueprint children. It seems to happen if loading of the parent BP is deferred ...
r.VolumetricRenderTarget.PreferAsyncCompute producing different visuals
UE - Graphics Features - Aug 2, 2024When the cvar "r.VolumetricRenderTarget.PreferAsyncCompute" is enabled, it will cause Volumetric Clouds to ignore the influence of Volumetric Fog. In high-fog environments, this can cause the clouds ...
D3D12 Does Not Correctly Validate Static Uniform Buffers Correctly
UE - Rendering Architecture - RHI - Feb 12, 2025When adding a Uniform Buffer Struct that has one 4x4 matrix to a mesh pass, validation will fail, due to a Uniform Buffer Struct mismatch. This can be reproduced by adding a mesh pass in project-si ...
Bug: Level Sequence OriginOverrideLocation not propagating to newly added nested ShotTracks
UE - Anim - Sequencer - May 14, 2025Within a Level Sequence, it's possible to override the transform (OriginOverrideLocation) of a ShotTrack. This generally works as expected — all nested ShotTracks should inherit and apply the transf ...
Painted foliage in a level instance can be selected in Foliage mode if the level instance is in main level, and foliage is duplicated if moved.
UE - World Creation - Worldbuilding Tools - Foliage - Sep 16, 2025Context Foliage Mode is a set of tools that enables you to quickly paint or erase sets of Static Meshes or Actor Foliage. Level Instancing is a level-based workflow designed to improve and streamlin ...
When using Drag and Drop UMG, Projects deployed to devices will crash once the UMG is touched and moved
UE - Editor - UI Systems - Dec 30, 2014When using Drad and Drop UMG with iOS via the information provide in the forum thread, the project will crash on the device it is deployed to when dragging the UMG ...
UEnum::NumEnums appears to be returning one more than the actual number of elements in an enum.
UE - Foundation - Core - Jan 6, 2015A user reported that UEnum::NumEnums appears to be returning one more than the actual number of elements in the enum. ...
Android DLC profile in Project Launcher fails if there is a space in the path for the destination directory
UE - Platform - Mobile - Aug 22, 2018Creating and running an Android DLC profile in the Project Launcher currently fails if there is a space in the path to the destination directory where the packaged DLC will go. If there is no space ...
MaterialInstanceConstant doesn't refresh soft references of non-overridden texture parameter
UE - Graphics Features - Aug 22, 2022Observed by a licensee: [Link Removed] When a material instance points to a material, and the material is edited to change a texture and the material and material instance are saved, the material i ...