Infinite Loop When Generating HLOD Clusters

UE - World Creation - Worldbuilding Tools - HLOD - Aug 8, 2018

The HLOD system gets stuck in a infinite loop when building.  Comment from the user: ++I've tracked it down to this code: const AActor* UHLODProxy::FindFirstActor(const ALODActor* LODActor) { a ...

TMap does not serialize properly in specific circumstance when it contains a UObject property set to null by default

UE - Foundation - Core - Aug 8, 2018

A TMap containing a struct with a UObject reference property (set to nullptr by default) does not serialize properly for an instance where the UObject reference is set on the instance, but the TMap ...

Crash upon attempting to load into session via Join Session in Blueprints on iOS

UE - Networking - Aug 8, 2018

Joining a session on iOS using the Join Session node in Blueprints causes a crash on iOS. This is similar to [Link Removed] but was requested to be entered separately. This has not been reproduced ...

Not having sufficient permissions to save Rhino file after importing

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 8, 2018

When importing a Rhino 6 file that has a long filename, an error appears stating that there are insufficient permissions to save the file. ...

Child Actors do not replicate to clients when running project with "-game" command

UE - Networking - Aug 7, 2018

Child Actors do not replicated properly to clients when running a project using the "-game" commandline argument. This does functionality does work properly in PIE and in a cooked build however. Re ...

Using a Sub Anim Instance causes a "Sub Instance Loop" Compile Error

OLD - Anim - Aug 7, 2018

Using a Sub Anim Instance causes a sub instance loop error when referencing another Animation Blueprint. This is a regression from 4.19.2 (CL-4033788) as it complied without error. This issue was r ...

UMG Widget Set Focus in Standalone broken

UE - Editor - UI Systems - Aug 7, 2018

Focus is no longer set on UMG 3D Widget when playing in Standalone. (PIE works in both versions) Also verified in Main CL# 4247867 ...

Actor Component Replication Not Working on Dynamically Spawned Components in Blueprint

UE - Networking - Aug 7, 2018

Actor components that are spawned dynamically through Blueprint are not being properly replicated to the client.  Found in 4.20 CL# 4233996 and reproduced in 4.21 Main CL# 4258917 Unable to test i ...

Ensure when pasting copied nodes into an Object

UE - Gameplay - Aug 7, 2018

When copy and pasting nodes from an Actor Blueprint to an Object Blueprint the Editor stalls for a bit and an ensure occurs. This issue was reported and tested in 4.19.2 (CL-4033788). This issue ...

Assert running Datasmith from Blutility via a Commandlet

UE - Editor - Content Pipeline - Datasmith - Importer - Aug 6, 2018

Launching the Editor/Datasmith from Blutility via a Commandlet that is importing a .stp file causes the Editor to not launch with an assert.  ...