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 ...
When sRGB unchecked in the texture editor it can lead to textures being washed out in UMG ...
I confirmed in UE4.21.2. I attached the project to reproducte the problem. ...
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 ...
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 ...
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 ...
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 ...
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+ ...
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 ...