Unreal Engine Issues
Unreal Engine Issues
Chaos Vehicle wheel output data does not include the wheel forces
UE - Simulation - Gameplay - Oct 5, 2023This is more of a feature request than a bug. From a UDN customer. The output from the simulation to the game thread does not include the force that has been applied at each wheel. It would be pref ...
LLM PlatformProcessMemory calculation ignores VRAM, and its calculation of how much memory is used by the process is too low
UE - Foundation - Sep 29, 2023FLowLevelMemTracker::TickInternal() the ELLMTag::Total (and therefore ELLMTag::Untracked) memory amounts are calculated based only on the result of FPlatformMemory::GetStats(), which on the Windows ...
Fractured Geometry Collection triggers a crash when colliding with an Animation Blueprint with a Rigidbody Node
UE - Simulation - Core - Sep 25, 2023This is not a regression. Tested in //UE5/Release-5.2 CL26001984 The editor crashes when a physics asset of an animation with rigid body collides with geometry collection. ...
Spherecast against complex geometry is returning odd results
UE - Simulation - Physics - Sep 19, 2023Turning on batching of sphere casts when colliding against complex gives incorrect results. Affects debug output and vehicle wheels and body movement. The issue is with the batch query mode which ...
Deadlock in UPhysicalAnimationComponent::UpdatePhysicsEngineImp
UE - Simulation - Core - Sep 13, 2023Deadlock in Chaos during PIE; the main thread is in USkeletalMeshComponent::HandleExistingParallelEvaluationTask waiting for a task to complete, and a worker thread is running that task and is in US ...
UHT doesn't warn that a class/structure size is larger than 65535
UE - Foundation - Cpp Tools - UnrealHeaderTool - Sep 1, 2023Looping Gameplay Cues are not removed if GameplayCueNotifyTagCheckOnRemove is true
UE - Gameplay - Gameplay Ability System - Aug 24, 2023GameplayCues inheriting from GameplayCueNotify_Actor no longer have their Removed functions called when removed via UAbilitySystemComponent::RemoveGameplayCue if GameplayCueNotifyTagCheckOnRemove is ...
Unable to set simulate physics to false through blueprints
UE - Simulation - Core - Aug 24, 2023If "Editable when Inherited" is disabled for the static mesh component the issue does not occur. The bug could be related with other UDN cases:https://udn.unrealengine.com/s/case/5004z00001ruXmEAAU ...
When change a skeletal's collision from QueryOnly to QueryAndPhysics at runtime, dynamic properties won't be updated
UE - Simulation - Physics - Aug 23, 2023It seems in the FBodyInstance::InitDynamicProperties_AssumesLocked, we early out when the body instance's collision is QueryOnly, but actually we only recreate its physics state when changing from N ...