Particle Ribbons not firing off consistently

UE - Graphics Features - Apr 8, 2016

Ribbon trails do not immediately follow the lead particle when fired. There is an inconsistent delay in some that cause them to either not fire or fire mid stream. This did not occur in 4.10.4, bu ...

WorldCoordinate3Way produces Incorrect Axis Lerps

UE - Graphics Features - May 18, 2016

The Material Function WorldCoordinate3Way seems to incorrectly perform the Lerps from the axis contributions of the normals. An example is show here, with the left objects using the version that com ...

Character Mesh transform replication break on clients

UE - Networking - Jul 3, 2017

In 4.16, character mesh on clients seem to be in the different location than the server. So far this happens when the player start is above the ground. This does not happen when network Smoothing ...

Crossfade sharing doesn't allow more than one shared transition

OLD - Anim - Apr 29, 2016

Looking at the propagate function:void UAnimStateTransitionNode::PropagateCrossfadeSettings() { UEdGraph* CurrentGraph = GetGraph(); for (int32 idx = 0; idx < CurrentGraph->Nodes.Num(); idx++) ...

World Composition origin shifting does not account for shifting the Dynamic Directional Light shadow casting

UE - World Creation - Worldbuilding Tools - World Composition - Aug 9, 2016

Directional light does not cast dynamic shadows after origin rebasing using world composition. There is an attached project that reproduces this. To see that the shadows load primarily where the l ...

UMG Tooltips are tiny and unreadable

UE - Editor - UI Systems - Jul 1, 2015

When hovering over tooltips, the windows pop up at a very small, unreadable size. ...

Details customizations with object references can cause map loading to fail.

Tools - Jan 23, 2018

This crash can be reproduced by adding a graph editor to a details customization.  This crashes because the graph editor is holding a strong reference to the graph object on the actor component duri ...

SimpleMoveTo does not work on Clients

UE - Networking - Jan 9, 2015

SimpleMoveTo does not work on Clients. ...

PixelNormalWS not working with Deferred Decals

UE - Graphics Features - Oct 14, 2016

Decals are no longer rendering correctly with PixelNormalWS plugged into the Emissive or Base Color input. ...

Cannot render more than one shot in a Master Sequence

UE - Anim - Sequencer - Oct 17, 2016

Cannot render more than one shot in a Master Sequence Regression: YES Worked: 3164219 4.14 Releases Broken: 3164583 4.15 Dev-Sequencer ...