Unreal Engine Issues

Particle Ribbon's do not work in packaged game

When a particle system has a ribbon trail it will not render when viewed in a packaged game. Attached sample asset from Content Examples with Ribbon Trail. This issue did not occur in 4.10.4, bu ...

Destructible Meshes will flicker in a Packaged Game

Destructible chunks will flicker after the DM has been fractured. These chunks will flicker until they are in a sleep state. Using Sensitive Sleep Family will allow this to stay prolonged. Waking th ...

Crash Occurs When Attempting to Use Validated Get on a Local Variable

In a function, creating a local Pawn or Actor variable, getting it, and then converting the Get to a Validated Get will cause the editor to crash upon compiling the blueprint. Found in 4.10.2 binar ...

FullScreen Immersive on KitKat and above devices still shows device buttons

Enable fullscreen immersive on kitkat and above devices does not properly work on devices with onscreen buttons. ...

Character Can Jump Indefinitely on the Client When JumpMaxHoldTime > 0

Characters on the client can jump indefinitely when using a Jump Max Hold Time of > 0. It appears that this option is not available on the client. ...

PlatformMediaSources fail to load in the editor.

[SM5] (Node TransformPosition) Error when opening HillTree_02 mesh from Open World Demo Collection

The HillTree_02 mesh from the Open World Demo collection has a shader compile error. The user pointing the issue out is reporting a freeze whenever he attempts to use the asset. I provided a workar ...

Fail to launch ('Attempt to build nav collision') on device when HLOD is generated

After generating HLOD, game launched from launch on device does not run correctly. 4.14 does not seem to have this issue, so this might be a regression. ...

Can't clear AnimBp reference from an old asset(4.10 or before) with a skeletalMeshComponent

When using an older asset(4.10 or before) with a skeletalMeshComponent in a newer engine version, a reference for the original AnimBP remains after changing the mesh component's Anim Class. ...

Blueprint Function Library does not save Struct default values

When a Struct is used as a Local Variable in a Blueprint Function Library, the defaults for its member variables are not saved. If, for example, I enter "3" for an Int member, and "Foo" for a String ...