Editor will freeze if anim composite has an animation with a notify and length of 0

OLD - Anim - Mar 21, 2019

An anim composite will freeze the editor if one of its animation segments has a a notify and a length of 0 or less. Debugging shows that the engine is stuck inside UAnimSequenceBase::GetAnimNotifies ...

sRGB unchecked leads to textures being washed out in UMG

UE - Editor - UI Systems - Mar 22, 2019

When sRGB unchecked in the texture editor it can lead to textures being washed out in UMG ...

Editor crashes when using Convolution Bloom executing High Resolution screenshot.

UE - Graphics Features - Mar 25, 2019

I confirmed in UE4.21.2. I attached the project to reproducte the problem. ...

Array index out of range with StopTree

UE - AI - Mar 26, 2019

Crashes when exiting PIE while executing multiple async tasks. By explicitly executing EndTask and FinishAbort of RecieveAbort, this caused by performing out-of-range in array access to InstanceStac ...

Properties of placed-in-map actor instances may not replicate if their default has been edited

UE - Networking - Mar 26, 2019

If the default value of a replicated property is edited on an instance of a placed-in-map actor, then on the server is value is changed back to the default, a client who joins in progress after this ...

Crash in RecreateClothingActors() when using MasterPoseComponent

UE - Simulation - Physics - Character - Mar 27, 2019

As part of RecreateClothingActors(), the master pose component is not checked for a valid mesh and therefore when TransformComponent->GetComponentSpaceTransforms() is indexed into, crashes can occur ...

Actors with Niagara components don't wait for the system to finish before being auto destroyed

UE - Niagara - Mar 29, 2019

UNiagaraComponent does not override IsReadyForOwnerToAutoDestroy, so it always returns true. This gets checked every tick if an actor is set to auto destroy, so actors with Niagara Components do not ...

Crash when duplicating multiple components at once

UE - Gameplay - Blueprint - Apr 4, 2019

When duplicating multiple components at once it appears to crash the editor. Regression: Yes, this appears to be working in the previous version of the engine (4.21.2-4753647) ...

Exponential Height Fog appears black when Luminance range is extended and light intensity is 2000lux+

UE - Graphics Features - Apr 5, 2019

Exponential Height Fog appears black when Luminance range is extended and light intensity is 2000lux+ ...

RF_WasLoaded is set to False in PIE for instances of a Blueprint if the Blueprint is recompiled

UE - Gameplay - Blueprint - Apr 5, 2019

The RF_WasLoaded flag is set to false for Blueprint instances in PIE if the Blueprint is edited and compiled. This is fixed by saving the level which is a simple workaround but this should be needed ...