Unreal Engine Issues
Unreal Engine Issues
Missing material maps on user library objects created in TM 2022
TM - Core - Apr 23, 2025Reported by user in SF [Link Removed] User library assets created in TM 2022.2.3 or older will not contain texture maps for their materials when the .tmi file is added to the TM 2025.1.1 User Libra ...
GAS: DefaultSubobject AttributeSet becomes invalid on duplicated blueprint
UE - Gameplay - Gameplay Ability System - Apr 22, 2025When a native actor 'AMyActorClass' creates AttributeSets as a default subobject via CreateDefaultSubobject, duplicating an actor blueprint based on AMyActorClass will result in a blueprint with an ...
Missing info in GPU breadcrumbs and DRED logs
UE - Graphics Features - Apr 21, 2025Some breadcrumbs and D3D12 logs are missing data which should normally be filled in e.g. Breadcrumbs: > PostProcessMaterial %dx%d Material=%s [Active]. After investigating this, there seems to be a ...
[UDN 18615482] SPropertyMenuComponentPicker crashes depending on clipboard contents
UE - Editor - Workflow Systems - Apr 17, 2025[Link Removed] From UDN: "The component picker has a Paste option and when trying to decide if it should be enabled or not it attempts to load a class using the clipboard contents as a class name. ...
Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets
TM - Rendering - Apr 17, 2025Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...
FStateTreeExecutionContext::GetDebugInfoString() outputs wrong info and crashes when using linked state trees
UE - AI - Debugging - Apr 17, 2025When using State Trees, the AI Debugger can be accessed during play to show information about their current execution state. If a behavior tree is currently in a state that references a linked tree, ...
Change of rotation axis when switching solver
UE - Simulation - Physics - Apr 17, 2025This alteration was introduced in the 'Found CL' field - and is likely an unintentional side effect of adding SIMD to the solver. There is a repro project attached, open up 'TestMap' and run to see ...
Memory leak in distance fields with bDisableWorldRendering
UE - Graphics Features - Apr 17, 2025There is a memory leak in the Distance Fields category when a mesh continuously moves through the world and the scene is being captured with bDisableWorldRendering set to true. This issue occurs on ...
Niagara Position Mode Unset results in World Space rather than Local Space
UE - Niagara - Scripting - Apr 16, 2025When an emitter's Position Mode is Unset, the particles spawn in World Space 0,0,0. This is unexpected. If the Position Mode is Unset in 5.4, the particles remain in Local Space, which is the inten ...
[Interchange] Import Material flag ignored for MaterialInstances
UE - Editor - Content Pipeline - Import and Export - Apr 15, 2025When Import Materials flag is disabled we still import MaterialInstances currently. If the flag is disabled we should leave out Materials and MaterailInstances on import. ...