Blocky terrain artifacting on iPadPro

UE - Platform - Mobile - Dec 23, 2015

When moving the camera, the surface of terrain becomes very blocky on the IpadPro (9.1.0) The licensee reports this also happens without Metal This didn't occur the iPad Air2 (9.0.2) here using th ...

EQS spheres are not fading from red to green based on their values

UE - AI - Sep 30, 2016

EQS spheres are not fading correctly where red = 0 and green = 1 This is a regression as it is working correctly in 4.13.2 at CL 3145013 ...

Last Index Node Changes Size And Shape Unexpectedly

UE - Gameplay - Blueprint - Oct 28, 2016

The Last Index node will change size and shape in way that isn't consistent with other nodes when at certain zoom levels. These levels are -1, -7, or -10 respectively. ...

Resolution appears incorrect when using Windows Mixed reality Simulator

UE - Platform - XR - Feb 4, 2019

Resolution appears incorrect when using Windows Mixed reality Simulator. It appears to only take up around 1/4 the available screen space. ...

Editor delay on end simulation in 4.14

Tools - Nov 16, 2016

When stopping PIE Selected Viewport or Simulate Mode there is now a 1 to 2 second delay that did not occur in previous versions of the Engine. Regression: Did not occur in UE4.13 or earlier ...

Blueprint Macro Libraries based on Actor cannot be reparented to Object

UE - Gameplay - Blueprint - Jul 13, 2015

Blueprint Macro Libraries based on Actor cannot be reparented to Object Reproduced in 4.7.6, 4.8.1, and Main (//depot/UE4/Promoted-CL-2605171) ...

Chaos Cloth - Multiple issues with convex colliders

UE - Simulation - Visual - Feb 6, 2026

Issue 1: Convex Collision Transformation Missing for External Collision Sources Issue 2: Convex CCD Stability Issues due to Plane Intersection Semantics See attached URL for more details. ...

iOS: No game sound after answering incoming call on iOS

UE - Platform - Mobile - Nov 28, 2016

When an iOS device receives and answers a call that interrupts a UE4 game, the game will no longer have audio after the call in completed. Expected: End of call returns to gameplay with audio. Actu ...

Assertion failed: PlatformNeedsExtraDeletionLatency()

UE - Rendering - Architecture - RHI - Mar 5, 2019

Animating a HISM along a spline when many other HISMs are present will result in a crash in 4.22. Confirmed in 4.23 MAIN @ CL 5291468 ...

C++ Event Dispatchers target pin cannot be set to actor references

UE - Gameplay - Blueprint - Nov 13, 2014

When connecting C++ created event dispatcher, the Target node will not accept reference to other actors. This is happening in 4.6 and Main but is working as intended in 4.5.1 ...