Nav Modifier Volume Not Affecting Nav Mesh Until it is Moved

UE - AI - Oct 21, 2016

Nav Modifier volumes are not affected the nav mesh until they are moved from their initial placement position. Found in 4.13.1. Reproduced in 4.12.5 and 4.15 Main CL 3163223 This is similar to [Li ...

TMaps with instanced objects: modifying instanced object data in child affects parent

UE - Gameplay - Blueprint - Jul 25, 2023

Given a TMap where the value type is an instanced object: when a child blueprint is saved with modifications to the TMap, and then additional TMap are added to the parent blueprint and the child blu ...

Haptic effect for Oculus touch does not last longer than ~2 seconds

UE - Platform - XR - Jan 30, 2018

Haptic effect for Oculus touch does not last longer than around 2 seconds even when set to a longer time. ...

Destructible meshes always affect navigation regardless of collision

UE - AI - Jan 27, 2016

Turning off a destructible mesh's collision will still affect navigation around the destructible mesh Note: This issue is related to [Link Removed]. The workaround for that issue does not apply he ...

2 GB/hr Memory Leak on levels that are not enclosed

UE - Graphics Features - Feb 19, 2016

2 GB/hr Memory Leak on maps with no Sky Sphere or Atmospheric Fog to occlude empty space. The leak also occurs during general usage, but was tested with a blank project and an absolutely blank leve ...

Drag coefficient on vehicle blueprints affects forward and reverse differently

UE - Simulation - Physics - Mar 31, 2016

Drag coefficient on vehicle blueprints affects forward and reverse differently. If in reverse, it seems to be additive or multiplicative to the vehicle's movement as opposed to providing any resista ...

Shortcut for Swing1Motion (2, and 3) do not change physics asset state dirty.

OLD - Anim - Sep 8, 2017

Shortcut for Toggle Angular Limits 1, 2 and 3 for Physics assets do not change phys asset state as dirty. ...

Steering Curve property does not affect steering

UE - Gameplay - Jul 21, 2015

Setting the Steering Curve of a vehicle movement component has no affect on the turning of the vehicle during play. ...

Motion Controller Axis input values over scale in increments of 2

UE - Platform - XR - Jan 8, 2020

The Axis input values for SteamVR motion controllers will increase exponentially by 2 from the moment the editor starts and every time the user enters VR Mode or does a Launch On (eg. Entering VR Mo ...

Gamepad input affects multiple game instances at once, due to not needing focus.

UE - Editor - UI Systems - Slate - Mar 5, 2019

Since Gamepad input works without needing focus (which was added in 4.9 with [Link Removed]), a Gamepad's input will also affect all instances running on the same computer. Regression?: No This occ ...