tvOS banner and App thumbnail do not appear on device; errors during app upload to Apple

UE - Platform - Mobile - Mar 22, 2019

When a user packages or launches onto tvOS it will be missing the thumbnail and the background banner. This may be a dupe of [Link Removed] but I have created this as this was confirmed to be worki ...

Second player's screen does not render in Split Screen on Android

UE - Platform - Mobile - Mar 21, 2019

The second player's screen in a Split Screen multiplayer session on Android does not render. It remains completely black. This was also an issue prior to 4.15 but was fixed with [Link Removed]. The ...

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 ...

Sun Position Calculator (CompassMesh) causes warning in packaged game due to being set to editor only

UE - Content - Engine - Mar 20, 2019

When packaging a project that is using the Sun Position Calculator plugin the logs will be spammed with warnings (Warning: Accessed None trying to read property CompassMesh). This could be worked ar ...

Crash when launching dx12 for the first time with Rect Lights

UE - Rendering Architecture - RHI - Mar 20, 2019

Users on the forums are hitting a crash on their initial launch of the engine into dx12. There is currently a workaround to load into the project with dx11 first, compile shaders, then youre fine to ...

Use mouse for touch enables gesture action on button which makes the button to lost focus to that the button fires onreleased event

UE - Editor - UI Systems - Slate - Mar 20, 2019

When Use mouse for touch is enabled, the button fires onreleased event. Here is what I investigated. Use mouse for touch enables gesture action in the button that leads to LongPress gesture fires ...

Setting spline in Niagara Override Parameters corrupts system after closing level

UE - Niagara - Mar 19, 2019

The USplineComponent appears to be corrupted. It will pass the null check, but operations done on the data cause the engine to crash. (See the linked UDN for more details) ...

Crash on loading pre-4.20 cloth data when compute skin cache is enabled in 4.21

UE - Graphics Features - Mar 19, 2019

According to information from the licensee, the else clause was added to "FSkeletalMeshLODModel::(GetClothMappingData()" at CL 4437969 , but if it is the cloth data existing from 4.20 or earlier, it ...

'Set from Euler (Quat)' and 'Set Components (Quat)' BP nodes have no output.

UE - Gameplay - Blueprint - Mar 18, 2019

'Set from Euler (Quat)' and 'Set Components (Quat)' BP nodes have no output. These nodes are new in 4.22 Confirmed in MAIN @ CL 5423420 ...