The default values of a Struct variable in a Blueprint will return to the default values of the Struct on compile when all values are set to 0

UE - Gameplay - Blueprint - Jan 19, 2015

The default values of a Struct variable in a Blueprint will return to the default values of the Struct on compile when all values are set to 0. Possibly related to [Link Removed] Tested in 4.6.1 a ...

InstancedStaticMesh instances fail to render on a mobile device

UE - Graphics Features - Nov 13, 2014

When a project with an InstancedStaticMesh is used in a level, the static mesh is failing to render on a mobile device Tested on a nexus 5 and an iPad air OS 8.1 ...

Delete Unused Variables deletes variables used in Child Blueprints

UE - Gameplay - Blueprint - Dec 30, 2014

[NickW] Should perform a search in children, at least warn if this will break children. — Delete Unused Variables deletes variables used in Child Blueprints. Note: Not only child blueprints. If ...

Some landscape grass instances floating when generated on AMD cards under OpenGL

UE - Graphics Features - May 15, 2015

User is reporting grass at the edge of their landscape being generated floating in the air on a Mac Pro with AMD GPUs. I have been unable to repro this on my Mac Mini with Intel Graphics HD 4000. Q ...

Can no longer bulk edit material properties with the property matrix

UE - Editor - Content Pipeline - Content Browser - Aug 24, 2015

In 4.7 you could select multiple material assets in the content browser, right click and choose Asset Actions > Property Matrix to bulk edit material properties, but in 4.8 and 4.9, this feature is ...

Compile button disappears and Hot Reload stops working after failing to Hot Reload in some cases

UE - Foundation - Core - Jun 2, 2016

When failing to hot reload in some cases, the compile button in the editor will disappear and Hot Reloads will stop occurring. This tends to happen randomly in other scenarios but the method above i ...

Changing BlueprintCallable function's code results in Warning in blueprint that should be considered an Error

UE - Gameplay - Blueprint - May 3, 2016

A user reported an issue where, if a BlueprintCallable function's parameters are edited, a blueprint using a BlueprintCallable function will give warnings instead of an error for a problem after the ...

A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0

UE - Gameplay - Oct 6, 2016

A physics actor will still bounce if the Restitution of a Physical Matieral is set to 0 User Description: Explanation : I am trying to create a Badminton Game for fun and while I was trying to han ...

Crash upon attempting to submit a level to source control after enabling Lock Read-only Levels

Tools - May 18, 2015

If a user enables the 'Lock Read-Only Levels' option in the Levels tab (Window -> Levels) of the editor and then attempts to submit a level to source control, it will cause the editor to crash. Not ...

Widget IsHovered does not register a TouchUp

UE - Editor - UI Systems - Aug 25, 2015

Widget node IsHovered does not register a TouchUp when you TouchDown onto a touchscreen device. It keeps the same x,y coordinates when moving your finger along the screen. I have spoken with Chris ...