Crash upon trying to add a variable to a struct array when the details panel is locked

Tools - Jul 12, 2018

Attempting to add a new element to a struct array through the details panel when the panel is locked results in a crash. Regression?: No This issue did not occur exactly the same way in 4.18, but t ...

Rect Lights does not illuminate Volumetric Fog except at extreme intensities

Rendering - Jul 9, 2018

Rectangular Area Lights require extremely high values in order to illuminate Volumetric Fog and Volumetric Materials. This means they do not appear to match the output of other light types of identi ...

Morph Targets fail to record through Persona and Sequence Recorder when set via the event graph

Anim - Jul 4, 2018

If you have a set of morph targets which are driven when you record with either the recorder in Persona or Sequence Recorder the resultant animation will not contain any values on the curves. In th ...

Emissive for Static Lighting - dark spot directly under light

Rendering - Jun 27, 2018

https://forums.unrealengine.com/development-discussion/rendering/1493948-emissive-for-static-lighting-glitch ...

Skeletal Mesh Attached Via Socket Rotates Collision in Unexpected Manner

Anim - Jun 22, 2018

Collision snaps to socket at an unexpected angle. See attached screenshot for breakdown on what is expected and unexpected. Description provided by user: the collider of the root bone is turned - ...

Editor grid zfighting with meshes

Rendering - Jun 15, 2018

The editors snap grid will zfight with flat surfaces of static meshes and BSPs. Found in 4.19 CL# 4033788, 4.20 preview CL# 4121666, 4.21 CL# 4131780 ...

GameplayTag Query on Component Instance resets when reloading level

Gameplay - Components - Jun 14, 2018

GameplayTagQuery variables - when inside of a component, are not saved. User notes: "Note that this does not occur if the ActorComponent is added in code in a native actor and that the actor at S ...

Point lights with source length building static or stationary lighting will build incorrect shadows on movable objects

Rendering - Jun 12, 2018

Adding source length to a point light that is set to stationary or static will cause shadows to build incorrectly on movable objects. Working as expected in 4.18 CL# 3832480 Found in 4.19 CL# 4033 ...

Foliage doesn't follow the Landscape which was planted on when level has never been saved

Tools - Foliage - Jun 8, 2018

Once the foliage instances lost the link to Landscape, Reapply tools also doesn't do anything on those foliage ...

4.20p1 Niagara System & Emitter windows missing compile icon with small toolbar icons

Rendering - Niagara - Jun 7, 2018

in the Niagara System & Emitter windows the compile button will be missing if small toolbar icons is enabled. The icons work correctly if this is not enabled. Found in 4.19 CL# 4033788, 4.20p1 CL# ...