Ensure triggers when undoing change to newly created variable

UE - Gameplay - Blueprint - Sep 28, 2018

Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...

Crash when duplicating an asset before renaming it in the Content Browser

Tools - Sep 27, 2018

If you duplicate an asset in the Content Browser before the renaming box prompts input it will cause the Editor to crash. This was reported and tested in 4.20.3 (CL-4369336). This is reproducible ...

User is able to drag duplicate events into the graph from My Blueprint

UE - Gameplay - Blueprint Editor - Sep 27, 2018

REGRESSION: Yes, this did not occur in 4.19 The user is able to drag an Event from My Blueprint panel into any graph, creating a duplicate Event Node. Additionally the dupe Event will have extra o ...

AShooterGame_FreeForAll::DetermineMatchWinner is set up in a way that it will never provide any functionality

Docs - Samples - Sep 27, 2018

The AShooterGame_FreeForAll::DetermineMatchWinner function is set up to compare each player's PlayerScore with the BestScore variable to see which players are considered to be the "BestPlayer" which ...

UE4Editor does not start when there are no audio devices available

UE - Platform - Linux - Sep 26, 2018

UE4Editor does not open when there are no audio input or output devices available. The editor hangs at 83% after it initializes the AudioMixer. This issue looks like it was caused by CL 4396954. Et ...

Local binary build fails with iOS platform included

UE - Foundation - Cpp Tools - Sep 26, 2018

This report is very similar to [Link Removed] (the command line used to run the build is slightly different), but the build fails with a different error. In this case, a source file is being looked ...

Replication node decorator does not appear on Timelines that are set to replicate

UE - Gameplay - Blueprint - Sep 26, 2018

A licensee has reported that Timeline nodes that are set to replicate do not have the replicated node decorator added, which would be seen on other nodes and variables that are replicated. Please re ...

FTransform(ENoInit) ensures in Debug on mobile platforms

UE - Foundation - Core - Sep 25, 2018

As of 4.20, ENABLE_NAN_DIAGNOSTIC is now enabled in all Debug configurations. However, this does not work well with the TransformNonVectorized that is used on platforms like android. If this combina ...

HLOD visibility state isn't cleared when changing scene

UE - Graphics Features - Sep 25, 2018

HLOD state is not cleared when moving to a scene without HLOD so primitives may read the state from the old scene and incorrectly cull objects. The safe fix is to clear the HLOD state maps when the ...

When a client sends an Unreliable RPC to the Server in same frame with a Reliable RPC, Unreliable RPCs are Reliable

UE - Networking - Sep 25, 2018

When a client sends an Unreliable RPC to the Server in same frame with a Reliable RPC, Unreliable RPCs are Reliable. It implies extremely high lag on each lost RPC and all following ones. User lose ...