Crash from generated Merged Actor with no created lightmap UV

UE - Gameplay - Nov 11, 2016

If you import a static mesh with no setup lightmap and uncheck the option for Generate lightmap UV so that only the UV Channel 0 is present. When you use the Merge Actor tool with a single one of th ...

Packaging a project in the binary Engine fails if the Skookum Script plugin is enabled.

Trying to package a project using the binary Engine with the Skookum Script enabled results in the package failing. ...

Roughness rendering differently on Macs

UE - Graphics Features - Oct 4, 2016

The roughness value for Macs renders differently (less rough or glossy) compared to Windows. It also seems to render as expected within the Material Editor preview window, but when applied to an obj ...

Splitting a Rotation input struct pin results in any previously entered values shifting to a different axis of the rotation

UE - Gameplay - Blueprint - Jun 12, 2016

Splitting the input rotation pin of a Blueprint node results in the X, Y, and Z values being applied to a different axis (X becomes Z, Y becomes X, and Z becomes Y). ...

Scene Color not Functioning when Used with HUD Blueprint

UE - Graphics Features - Mar 27, 2015

I was not able use the 'Draw Material' node function in conjunction with 'SceneColor' within the HUD Blueprint. However, as soon as I deleted the 'SceneColor' node within the material editor, I was ...

Unable to Open Level in HTML5

UE - Platform - Mobile - Mar 16, 2016

Trying to use an Open Level function in HTML5 does not allow the level to actually load. Instead, the project flashes and refreshes back to its original position. Open Level function does work on W ...

Crash while using the Delete Button in the HLOD Outliner while a Generated Proxy Mesh is opened in the Static Mesh Editor

UE - World Creation - Worldbuilding Tools - HLOD - Dec 28, 2016

When deleting a generated proxy mesh from the HLOD Outliner using the Delete Button while the generated proxy mesh is opened in the static mesh editor will cause the editor to crash. Workaround: U ...

Daydream enabled projects limits supported devices in Google Play

UE - Platform - Mobile - Mar 24, 2017

When enabling Daydream on Android devices and uploading it to Google PlayStore, the devices are lowered to 7. ...

FixDeps step will relink Engine modules even if only project code was changed

Tools - Oct 12, 2016

This is Linux and possibly Mac specific. FixDeps step does not have the proper dependencies and instead depends on every library, even one it is not relinking. Reported on UDN (see additional URL f ...

Trace Hit.Z varies strangely based on trace start/end Z

OLD - Anim - May 8, 2017

The Z value of a trace hit will vary based on the Z value of the start/end points of the trace. The larger the start/end Z range, the larger the variance of Hit.Z values. ...