Playing audio files in Editor doesn't work when Magic Leap Zero Iteration is enabled

UE - Platform - XR - Jun 14, 2020

When the "Enable Zero Iteration" and "Use ML Audio for Zero Iteration" settings are both checked, the audio doesn't play inside Unreal Editor. This happens in the following cases:Playing an audio fi ...

Smoke particles render with black box outline on tvOS in PlatformerGame

UE - Platform - Mobile - May 2, 2017

This is on tvOS 10.2. This is a regression from 4.15 ...

Custom Profiles Don't Update Maps To Cook When One Is Deleted

Tools - Feb 10, 2020

If you delete a map while it is marked to be cooked in a custom profile, then run the custom profile the map won't be deleted from the profile .ulps. I wasn't able to launch using the new custom pr ...

Hierarchical Instance Static Mesh's array does not reorder itself correctly

UE - Graphics Features - Jan 16, 2017

When an instance is removed from a Hierarchical Instanced Static Mesh's array, if there are indices that are further along in the array that fill that index, the last index in the array is used to d ...

Volumetric Translucent Shadow not showing in game mode

UE - Graphics Features - Sep 8, 2020

Volumetric Translucent Shadow not showing in game mode for versions 4.23-4.25.  Reported and tested in versions 4.25.3(CL 13942748), 4.24.3(CL 11590370), 4.23.1(CL 9631420), 4.22.3(CL 7053642). Wor ...

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 ...

Improper Rendering of Paper Sprites in Translucent Sort Axis.

UE - Graphics Features - Apr 8, 2019

Regression as of 4.22. Translucent Depth Sort Policy results in improper rendering ( Z-Fighting flickering) with Paper2D Sprite Components. ...

"ERROR: Client target not found!" When packaging client after enabling or disabling a plugin

Tools - Jun 5, 2018

"ERROR: Client target not found!" When packaging client after enabling or disabling a plugin. This will happen on both developer or shipping client as the build configuration.UATHelper: Packaging (W ...

The FNetNameMapping::GetUniqueName function appends numerical values to the end of the previous name instead of replacing the previous name's numerical value

UE - Gameplay - Blueprint Compiler - Feb 23, 2018

The GetUniqueName() function attempts to make sure that all node names are unique. For nodes that are used a large number of times, it adds a numerical value to the end of the name. Prior to 4.18, t ...

Physics objects will bounce unrealistically just before coming to rest

OLD - Anim - Jun 5, 2017

Physics objects will bounce unrealistically just before coming to rest. This is most noticeable with the large cube in the 1st Person template project. It also happens with the smaller cubes but not ...