Issues with PrepareMapChange/CommitMapChange and Level Collections

UE - Networking - Jan 12, 2017

Per https://udn.unrealengine.com/questions/329206/crashes-when-streaming-levels-in-414.html LevelCollections has introduced some issues with using Prepare/CommitMapChange. CL# 3255445 has addressed ...

Slate drag/drop detection does not work with multiple pointers

UE - Editor - UI Systems - Slate - Jan 11, 2017

The drag delta detection in SlateApplication does not ensure that the two pointer events it is comparing are coming from the same pointer. This causes it to think dragging should begin on a widget b ...

Vectorized and Non-Vectorized FTransform Accumulate are inconsistent with Blendweights

UE - Foundation - Core - Jan 11, 2017

The vectorized version of FTransform::Accumulate and FTransform::AccumulateWithAdditiveScale3D only blend the rotation, but not the translation or scale. This is divergent behavior from the non-vec ...

Lighting data wiped if sub level is hidden while rebuilding lighting for visible levels

UE - Graphics Features - Jan 11, 2017

When building lighting now you can no longer have a hidden sub level and have it retain it's built light if it was previously built. For instance, if you have a persistent level and hide the sub-lev ...

The Nativize Blueprint Assets option causes C++ collision components to ignore their extents set in a blueprint

UE - Gameplay - Blueprint Runtime - Jan 11, 2017

Using the Nativize Blueprint Assets option can cause the extents of a collision component defined in code and inherited by blueprints to use its default values in a packaged build instead of the ext ...

Capsule collision replication issue

UE - Simulation - Physics - Jan 10, 2017

Increasing the Capsule Half Height size of a Capsule Component of a Character class in a multiplayer game results in other clients getting inaccurate (jittery) collision when colliding against meshe ...

Skeletal Meshes with cloth disappear when at the edge of the viewport

UE - Simulation - Physics - Character - Jan 10, 2017

Skeletal meshes with cloth will disappear at the edge of the viewport. If timed right (hard to repro, you can see it flicker repeatedly. ...

TryConvertFilenameToLongPackageName fails to work on plugin assets

UE - Foundation - Core - Jan 6, 2017

Plugin mount point registration doesn't mount paths relative to both root and engine, only relative to root while most other Engine directory mount point registrations include both ../../Content/... ...

Crash in K2Node_CallFunction

UK2Node_CallFunction::GeneratePinTooltipFromFunction relies a lot on loops that increment the index used to check the individual characters in the comments. The problem is that there are a few miss ...

Disabling "Should Be Visible" On a Streaming Level Resets Variable Values

UE - Gameplay - Jan 6, 2017

When disabling "Should be Visible" of a stream level and then enabling it again, the values of variables in a Blueprint that has been placed in a stream level maintain their value in PIE but reset t ...