Unreal Engine Issues

Reference to control rig can be lost on actors with multiple skeletal mesh components

In the attached project, when we initially add a control rig track for the actor with multiple skeletal mesh components, we add the control rig for the correct component because FControlRigParameter ...

Light Function and World Position in 5.4

When rendering a Light Function into the Translucency Lighting Volume, the World Position Material Expression returns the position relative to the Camera (unrotated), not the World. This can be mor ...

[CrashReport] Crash related to looped Reroute nodes

This is a common crash affecting users in 4.15 and 4.16. User DescriptionsI connected two reroute nodes together in a circle. And well it brought me here.I connected a reroute node with a reroutnod ...

Default value propagation of instance subobjects doesn't work consistently

Widgets will bind input delegates to the Player Controller's Input Component, but never unbind them

This is a bug introduced with 18468289 a while ago. We added this functionality for [Link Removed], which allows input event nodes to be placed within widgets and have them behave correctly.  This ...

HotReload fails with Linker errors when using Visual Studio 2017

I had a tester with VS 2015 run through the steps I failed with, and they were unable to repro. JamesF was able to repro the issue on VS 2017. JamesF pointed out that this does not occur is you cho ...

A replicated Timeline's Finished output does not fire on the Client if the Server changes the Timeline Length to a shorter duration

A replicated Timeline's Finished output does not fire on the Client if the Server changes the Timeline Length to a shorter duration. Test project attached. Reproduced in 4.9.2 binary, 4.10.2 binar ...

EDITOR: LIVE: CRASH: Reroute nodes can cause a loop that freezes the editor.

Branch Build Label UE4-Main Promoted-CL-2230001 DESCRIPTION: If reroute nodes are used to make a loop, the editor will not catch it and the loop will freeze the editor. ADDITIONAL NOTES: Creatin ...

[CrashReport] UE4Editor_Cascade!FCascadeEdPreviewViewportClient::GetCascade() [cascadepreviewviewportclient.h:72]

This is a common crash affecting users in 4.16. It appears to be a continuation of [Link Removed]. Users have not provided additional information about this crash. Source Context/** Accessors */ ...

Missing receipt error packaging Blueprint project for tvOS with custom iOS icon (Launcher build)

This failure occurs when trying to package SunTemple for TVOS. It did not occur with a blank blueprint project, until I added a custom iOS icon and tried to package a second time (I hypothesize th ...