Unreal Engine Issues

Literal Gameplay Tag Container's Return Value does not have ParentTags

Literal Gameplay Tag Container's Return Value does not have ParentTags in 4.17 and 4.18. In 4.16, the value had it. There is same problem in Return node that is Gameplay Tag Container Structure. In ...

UWorld::RemoveFromWorld does not check Pointer Reference for null before use

The code in UWorld::RemoveFromWorld that removes Pawns that are about to be streamed out does not check to see if the pointer that it sets is null prior to using it. In cases where Pawns are rapidly ...

Screen Aligned(Velocity) particles deform at low velocity

Screen aligned particles with very low velocity will squash in 4.23+ (No squashing in 4.22) Confirmed in 4.25 MAIN at CL 10333042 ...

Copying an InstancedStaticMeshComponent does not render correctly

Material cannot be set in MaterialInterface of NiagaraParameterCollection

When MaterialInterface is added to UserParameter of NiagaraSystem, Material can be set in Properties. Also, in UE4main CL15988344, there is no MaterialInterface item in the NiagaraParameterCollecti ...

Crash in FMacApplication::FindScreenByCocoaPosition when using the mouse in the ILIAD plugin.

I think this could occur anytime but is probably very rare. However using this plugin from the reported UDN makes it much easier to repro as they are calling FMacApplication::ConvertCocoaPositionTo ...

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState

[CrashReport] UE4Editor-MovieSceneTracks!UMovieSceneComponentMobilitySystem::RestorePreAnimatedState(IMovieScenePreAnimatedStateSystemInterface::FPreAnimationParameters const &) [MovieSceneComponent ...

Timelines do not parse "," in numeric fields the same as the rest of the editor

Specular Scale 0 on Light still affects Groom asset

When a light's Specular Scale is set to 0, the specular still affects hair / groom assets. The specular of other assets (like a shiny static mesh in the scene) is properly affected by the change.  ...

Applying downscale causes textures to display unexpectedly on widgets

When applying downScale 2.0 to UI textures to reduce resolution, unintended display issues occur on widgets, such as: ・The border of box-shaped Widgets with DrawAs set to “Box” becomes thinner ・Dot ...