Windows registers touch events twice - Once as mouse click

UE - Editor - UI Systems - Slate - Nov 28, 2017

When tapping on a button with a touch monitor, it is registered as two inputs. There was an issue on win7 where touch inputs were counted as touches and clicks. This seems to be the same issue on wi ...

Blueprint component lost when reparenting native base class and component name collides

UE - Gameplay - Blueprint Compiler - Feb 26, 2018

Use attached project to skip c++ steps. Follow from step 6. Update: It appears that the same symptoms occur if you simply change the name of an existing subobject, without changing the property/f ...

Complex Landscape Collision is always used

UE - LD & Art - Modeling Tools - Landscape - Oct 24, 2018

For landscapes, both the simple and complex collision are used when simulated against.  ...

Root Motion interpolation is incorrect when use URO

UE - Anim - Runtime - Aug 3, 2018

According to Licensee's report, Root motion is incorrect when use URO. I Investigated, in the case of "Montages Only" become TrailMode in URO. Normally Animation Interpolation has implementation, ...

Inconsistent Blueprint Instance Physics/Collision edit-ability

UE - Simulation - Physics - Oct 9, 2018

For Blueprints with components having collision, the collision profile set in the blueprint seems to determine the edit-ability of many collision/physics properties of the instances. The profiles ef ...

Documentation for Geographically Accurate Sun Positioning contains Incorrect Definition for Longitude and Latitude.

Docs - Jan 28, 2019

Incorrect definitions for Latitude/Longitude in Documentation for Geographically accurate sun positioning.  https://docs.unrealengine.com/en-us/Engine/Rendering/LightingAndShadows/SunPositioner Ex ...