Unreal Engine Issues

Project fails to build when the SQLite Amalgamation files are included in the project.

In 4.20, it is no longer possible to add the SQLite Almagamation files to a project. Attempting to build a project with these files added results in the build failing due to numerous errors about pr ...

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

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

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

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

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

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

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

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 ...

MSAA depthbuffer never be released on Android

Disabling Bluetooth controllers also disables the Android Back input event

Disabling Bluetooth Controller support for Android also causes the Back button of the navigation bar to not work properly, as the input event does not fire when it is pressed. Regression?: No This ...