Unreal Engine Issues
Unreal Engine Issues
Mass instanced skinned mesh sweep removes instances without freeing their ASTP tracks
UE - MVF Character - Animation - Oct 7, 2026When an entity stops being batched into an instanced skinned mesh component, the "Collect unwanted items & remove" sweep removes its instance, but never frees its ASTP track. Only ProcessRemovesForC ...
Chooser with Gameplay tag as output causes Evaluate Choose to not compile.
UE - MVF Character - Animation - Mar 20, 2026When using a No Primary Result Chooser that contains an FGameplayTag parameter, an Evaluate Chooser node using that chooser will cause a compilation error: LogBlueprint: Error: [AssetLog][PathToPro ...
Motion Matching FPS instability causes jittering when using the root offset node
UE - MVF Character - Animation - Feb 23, 2026Offset root node is affected by frame rate and produces jitter in it's motion across various settings and styles. ...
Object Columns using soft asset references will return null results
UE - MVF Character - Animation - Feb 6, 2026We have encounter an issue in the Chooser when we setup output object column for soft reference object ptr (an optional montage object). It is working correctly when the montage is loaded. But befor ...
Motion warping doesn't enable if a target is added on frames subsequent to the start of the warp notify
UE - MVF Character - Animation - Nov 18, 2025The issue is that URootMotionModifier_Warp::Update will disable the warp if there is no target found for it. But there's no functionality to turn the warp back on if a target is then set on a later ...
TMatrix<T>::InverseFast() ensure when running URootMotionModifier_SkewWarp::WarpTranslation().
UE - MVF Character - Animation - Oct 3, 2025URootMotionModifier_SkewWarp::WarpTranslation() uses InverseFast() within a block of code that is only executed if DeltaTranslation is not nearly zero. The ToRootSyncSpace transform the code builds, ...
Update LookupProxy chooser evaluation to work with soft object references.
UE - MVF Character - Animation - Oct 1, 2025Soft object references in proxy tables, when evaluated return a nullptr, instead of the soft object reference to load. ...
Division by zero in FAnimNode_StrideWarping::EvaluateSkeletalControl_AnyThread
UE - MVF Character - Animation - Sep 29, 2025When an Actor's CustomTimeDilation is 0.0, functions FActorTickFunction::ExecuteTick() and FActorComponentTickFunction::ExecuteTickHelper() will call AActor::TickActor() and UActorComponent::TickCom ...
PoseSearch Query is flipped 180 degrees 1 frame after a capsule/actor rotation happens.
UE - MVF Character - Animation - Sep 3, 2025Using MotionMatching with a PoseSearchSchema with a Trajectory grouping. The query gets rotated to match the capsule/mesh component instead of the offset root/actual location of those bones/trajecto ...
Rewind debugger would crash when recording a character using Pose search
UE - MVF Character - Animation - Aug 8, 2025Our character is using the Pose search setup from GameAnimation content example. The architecture of the system is most the same with some new function that account for some input difference and sp ...