UAbilityTask Out parameters are not parsed properly

Gameplay - Blueprint Editor - Aug 30, 2018

A licensee has reported that when creating an Ability Task through a C++ class, the Out parameters for the task do not parse properly. Regression?: No This occurred in 4.19 as well ...

Crash caused by Buffer Overread in TBitArray operator < function

Core - Aug 29, 2018

A licensee has reported a crash that is caused by a Buffer Overread in TBitArray's operator < function. While the licensee did not provide reproduction steps, the crash is apparent from looking at t ...

Shift + Leftclick selection not working in World Outliner

Tools - Aug 29, 2018

The Shift + Leftclick selection range appears to break when selecting something in the World Outliner first followed by clicking something in the Viewport and then shift selecting a range back in th ...

Cascade ParticleRelativeTime Outputs Constant 0 on Mobile

Rendering - Cascade - Aug 29, 2018

Cascade ParticleRelativeTime outputs constant 0 on mobile. Found in 4.19 CL# 4033788, 4.20 CL# 4302132, 4.21 CL# 4321618 ...

Incorrect Material Element Indexes When Importing Multiple Meshes In The Same FBX

Tools - Aug 28, 2018

Incorrect material element indexes when importing multiple meshes in the same FBX. If you re-import the mesh that has the incorrect material element index it will correct itself. Seems similar to U ...

Child Actor components on Clients use the incorrect default values for variables that are not being replicated

Gameplay - Blueprint - Aug 28, 2018

When a Child Actor's class is replicated but the individual variables are not, the individual variables will use the default of the original BP class instead of the defaults that were set in the Chi ...

Incorrect Input Index When Removing The Input From Custom Node

Tools - Material Editor - Aug 27, 2018

The input removed the connection points are not re-indexed. So connected 'wires' stay on their places. That causing disconnection of the last wire as well as shift for every node that followed the o ...

Changes to RuntimeFloatCurves do not propagate to child BPs until the Editor is restarted

Tools - Aug 27, 2018

Any changes made to a RuntimeFloatCurve will not be propagated to child Blueprints until the Editor has been restarted. ...

BP nativization can generate an invalid path including "__TEMP_BP__"

Gameplay - Blueprint Compiler - Aug 27, 2018

The licensee sent us a BP that can't be nativized correctly on UDN. The nativized BP has wrong paths and causes a crash. ...

Characters using NavWalking on server have noticeable jitter on clients at lower framerates

Gameplay - AI - Aug 23, 2018

AI nav walking doesn't allow clients to set a "Base" for the character (SetBase from UpdateFloorFromAdjustment), so there is no floor result on frames where there is a net update. This causes simula ...