While mouse dragging a Spinbox Widget, it cannot be edited once the player's focus is lost (calling: Set Input Mode)

UE - Editor - UI Systems - Nov 28, 2017

The Spinbox Widget cannot be edited if the Player's focus is lost. I have tried using different keyboard letter inputs in the Blueprints and have gotten the same results. ...

Windows registers touch events twice - Once as mouse click

UE - Editor - UI Systems - Slate - Nov 28, 2017

When tapping on a button with a touch monitor, it is registered as two inputs. There was an issue on win7 where touch inputs were counted as touches and clicks. This seems to be the same issue on wi ...

LineTraceSingleByChannel does not correctly use the collision response set for the channel being traced on

UE - Simulation - Physics - Nov 28, 2017

There appears to be an issue with how raycasts are performed within PxScene. When performing the trace, only the collision response for the first ECollisionChannel seems to be considered. If all col ...

Static regex patterns can cause crashes on shutdown

UE - Editor - UI Systems - Localization - Nov 28, 2017

The current lifetime management of regex patterns means that we can attempt to destroy them after ICU has been shutdown. We should change these to follow the same pattern as break-iterators, and exp ...

Can Not Skip to Next Frame in Animation Composites

OLD - Anim - Nov 28, 2017

Within a new Animation Composite, the To Next and To Previous buttons do not move to the animations next or previous frame. ...

[CrashReport] UE4Editor_Landscape!DeleteLayerIfAllZero() [landscapeeditinterface.cpp:2300]

UE - LD & Modeling - Terrain - Landscape - Nov 28, 2017

This is a semi-common crash in the 4.18 release. There is one recorded case of this callstack also occurring back in the 4.11 release, but it seems to be an exception. All other cases have only occu ...

Crash when BP_LightStage SkyLight Cubemap Resolution changed by spinning value

UE - Graphics Features - Nov 28, 2017

Engine crashes when the value in the Cubemap Resolution for the SkyLight component in the BP_LightStage is changed by spinning the value. This asset is found within the Advanced_Lighting map of a B ...

Crash when compiling Camera Component BP with PostProcessSettings visible

UE - Gameplay - Nov 28, 2017

When compiling a blueprint derived from a Camera Component with PostProcessSettings showing in the details panel the Editor crashes. This does not occur in 4.17.2 (3658906) so in addition to a crash ...

Mouse movements during Simulate will slightly move Skeletal Mesh actors that are simulating physics

UE - Simulation - Physics - Nov 27, 2017

Mouse movements during Simulate will slightly move Skeletal Mesh actors that are simulating physics. This also effects physics assets in the PhAT editor during simulate. The effect is small but I wa ...

Actors Do Not Remain Attached When Sequence is Saved and Reopened

UE - Anim - Sequencer - Nov 27, 2017

Link to youtube video of workflow: (Link can also be found in UDN post) [Link Removed] Spawned actors do not stay attached following the method above when the Sequence is saved and reopened ...