Manually changing the value for Constraint Value 1 & 2 causes odd visual issues

UE - Simulation - Physics - Jun 1, 2016

Changing the values that govern what bones a constraint is suppose to be a joint between (Constraint Bone 1 & 2) will cause issues where the transform widget is moved to an appropriate location but ...

Seamless travel not supported in single process warning while single process PIE is disabled

UE - Networking - Aug 23, 2016

I initially noticed this when I had it set to a single process, but the same error was occurring when I had single process turned off. To double check that Seamless travel was enabled I ran the con ...

Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets

TM - Rendering - Apr 17, 2025

Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...

Meshes made with the Pivot Painter tool don't work correctly on OpenGL ES3.1 + AEP

UE - Platform - Mobile - Dec 1, 2015

In the project attached in original UDN post (too big to attach here) there is a tree that was created with the pivot painter tool that is animated. In the editor it behaves correctly, but trying t ...

Setting World to Meters in the World Settings to a large number will cause the console to show incorrectly in VR

UE - Platform - XR - Jan 4, 2016

If the User changes the "World to Meters" setting in the World Settings this will cause the console to appear offset when brought up in VR. Note: the number used was 3600 ...

Shader Complexity does not function properly with Android ES2 or ES3.1 set as the Preview Rendering level

UE - Platform - Mobile - Feb 25, 2019

A user has reported that Shader Complexity is not working properly in 4.21 with the Android ES2 or 3.1 preview rendering level settings. Regression?: No It did not look this way in 4.21 and prior v ...

Post process in Right eye misaligned on PSVR when using vr.PixelDensity greater then 1

UE - Platform - XR - Sep 5, 2019

When changing the pixel density for PSVR it appears that some post processes shift slightly in the Right eye ...

Making the viewport fullscreen while Application scale is a value other than 1.0 results in a zoomed in/out viewport

Tools - Jan 11, 2017

When using Application Scale in the editor, using F11 to make the viewport fullscreen results in an either zoomed in or zoomed out fullscreen version. Note: This same issue occurs when using a comb ...

Number of Frames in Animation Change on Import When the Frame Rate is Set to 30 or 60 in Maya

Tools - Feb 12, 2018

-When imported into 4.17.2 the 30fps animation had 42 frames. In any engine version after the animation has 17 frames -The 60 FPS animation only has 7 frames in all engine version ...

1 frame flickering when creating UMG using Textblock, ScaleBox and Overlay

UE - AI Workflows - UI Systems - Slate - Dec 15, 2021

As a report of a similar issue, changing the text to right-aligned causes a similar issue. This issue seems to have been occur by a change in CL7540157. It also seems to be improved by adding the p ...