UAnimSequenceBase::GetNumberOfFrames off by 1

Anim - Sep 10, 2019

Creating a montage from a default frame rate and rate scale sequence reports 1 less frame than the sequence. The difference is a result of UAnimSequence overriding UAnimSequenceBase::GetNumberOfFram ...

UAnimInstance::GetInstanceTransitionTimeElapsed returning 0 in non-editor builds

Anim - Sep 4, 2019

In non-editor builds UAnimInstance::GetInstanceTransitionTimeElapsed always returns 0.0f. This is caused within FAnimNode_StateMachine::Update_AnyThread due to: #if WITH_EDITORONLY_DATA NewTra ...

Blend Space Per Bone Blend does not apply blend weight correctly

Anim - Aug 30, 2019

The Blend Space's Per Bone Blend doesn't always apply its interpolation speed correctly to the appropriate bone or at all. ...

Crash when setting Anim to "None" with URO

Anim - Aug 28, 2019

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing

Anim - Aug 28, 2019

State Machine events "Left State Event" and "Fully Blended State" not firing when animation is sequence is playing at the moment you enter/leave the state. ...

Compiled MayaLiveLink plugin for Maya-2018 under Linux crashes Maya

Anim - Aug 27, 2019

User is trying to use the Maya Live Link plugin on Linux with Maya 2018. They tried to modify the MayaLiveLinkPlugin.cpp because there is no possible way to compile the plugin under linux with uintp ...

Blend Graph can trigger ensure Bone.IsRotationNormalized()

Anim - Aug 23, 2019

Using a custom Blend Graph can trigger the ensure Bone.IsRotationNormalized() when source pose is connected to output. ...

ApplyAnimationCurvesToComponent doesn't propagate everything to slaves

Anim - Aug 20, 2019

In USkeletalMeshComponent::ApplyAnimationCurvesToComponent, while InMaterialParameterCurves and InAnimationMorphCurves are independent of one another, if either of them is empty neither is passed on ...

Control Rig: crashes when compiling after rearranging input pins in an array in Example Rig Unit

Anim - Aug 20, 2019

The crash doesn't occur every time, but it will happen within 3 swap and compiles in my experience. I got multiple different callstacks when I cause the crash using the reproduction steps (they are ...

Crash after Disabling Post Process Blueprint on a Skeletal Mesh

Anim - Aug 20, 2019

Changing the Anim Class in the Details Panel before Disable Post Process Blueprint can prevent the crash from occurring. Changing the Animation Mode does not seem to prevent this crash.  The conten ...