Attaching Moving Character to a Negatively-Scaled Actor Causing Character to Flip Continuously

Gameplay - Player Movement - Aug 10, 2016

When attaching a moving character, such as an AI character, to an object in the level with a negative scale, the character is constantly flipping while moving. ...

Text block widgets that are copy and pasted do not retain the same name in the hierarchy

Tools - UMG - Nov 22, 2016

Text block widgets that are copy and pasted do not retain the same name as the copied widget in the hierarchy. ...

PhysX errors when packaging for x86

Platform - Mobile - Oct 27, 2016

Packaging for x86 in ETC1 will generate PhysX errors and cause the package to fail. The following error will occur multiple times throughout the package:UATHelper: Packaging (Android (ETC1)): Unrea ...

Static variable declaration causes unresolved external errors when calling FRootMotionMovementParams functions

Anim - Animation - Jan 11, 2017

Attempting to call a FRootMotionMovementParams function results in an unresolved externals error on compile because of the static FVector RootMotionScale variable. Workaround: In source, removing s ...

Tooltips Not Displayed for Local Blueprint Variables

Gameplay - Blueprint - Jan 25, 2017

Local blueprint variables do not appear to be displaying their tooltips when Get or Set. This is inconsistent behavior, as adding a non-local variable displays the tooltip when Get or Set. ...

The Editor crashes when adding an element to a TMap that uses an unhashable struct as a key

Gameplay - Blueprint - Feb 28, 2017

The Editor crashes if an unhashable struct is used as a key in a TMap and a new element is added to the TMap in a Blueprint. ...

Transform does not update after first time for Instance Static mesh in Blueprint Editor

Gameplay - Blueprint Editor - Mar 2, 2017

In 4.15 When you update the transform of an instance static mesh a second time the editor does not update the location, to get the update to display correctly you must close and re-open the blueprin ...

Compile error with Local Variable of a Struct that contains a Set or Map type

Gameplay - Mar 7, 2017

Compile error with Local Variable of a Struct that contains a Set or Map type. Standard and array variables work without issue. Non-local variables also work without issue. ...

Re-Importing a Static Mesh Removes All Sockets

Tools - Mar 9, 2017

Re-importing a static mesh results in all currently applied sockets being removed from the static mesh in the Editor. Workaround: Setting the sockets up in the Native 3D editing software followin ...

Major performance drop with instanced meshes since PhysX 3.4 upgrade

Physics - Mar 15, 2017

Major performance drop with instanced meshes since PhysX 3.4 upgrade Regression: YES Worked: 3172292 (4.13.2) Broken: 3249277 (4.14.3) For me, my results were: 4.8 through 4.13 No Collision - ...