Unreal Engine Issues

Planar Reflection with Exponential Height Fog flickers on iOS

Planar Reflections have noticeable gaps in the reflection of the exponential height fog for the scene that will flicker as the camera moves. Attached ipa link and test project. [Link Removed] Te ...

Using ConstructorHelpers::FClassFinder in a GameMode constructor may result in a default value or crash if the level is reloaded multiple times.

Randomly selecting a character class from the GameMode constructor using ConstructorHelpers::FClassFinder can result in default or null character being set when the level is reloaded. It appears tha ...

Anim Notify blueprints are included in packages when not referenced

Anim Notify Blueprints are included in Packaged builds of the editor even if they are not referenced. This does not occur with other Blueprint classes, such as Actor, although it may with some other ...

MediaTexture do not show video when playing a movie using Media Player in some Android devices.

Movie Player do not seems to play movie in some android devices. [Link Removed] You can simply run the attached project in android devices to see the movie is played as expected. ...

Sequencer Sub Sequence cannot play back from Master Sequence at a Time Scale under "1.0"

Sequencer Sub Sequence cannot play back from Master Sequence, when the Property Time Scale is set to numbers under "1.0" ...

Memory leak in Test build when moving ISM with UpdateInstanceTransform

This leak occurs in Test builds, but not in Development builds. Updating InstancedStaticMesh with UpdateInstancedTransform every frame causes a memory leak. This screenshot was taken using Mempr ...

HideCategories metadata does not hide native Component categories when viewing the root actor

Seems like we are probably just missing a metadata check when drawing the details of the actor instance, and it is only doing the check for drawing ActorComponent details.  ...

Decal Fading parameters are completely broken

Replace with child on subtree of the NamedSlot is broken after reloading a widget.

"Replace with child" does not work well with the NamedSlot widget after reloading the widget blueprint in Contents Browser. ...

World Position is incorrect when used to control the opacity mask in a nanite spline mesh

When calculating the opacity mask, Nanite spline meshes do not have the correct World Position in the Material. This leads to visual artifacts when the mask relies on the world position. ...