Landscape Grass disappears after sculpting a landscape with "Enable Edit Layers" on

Tools - Landscape - Apr 6, 2020

The grass won't spawn after proper material being applied on the landscape. Even after being forced to be spawned (by reloading the level, for example) the grass will disappear again every time the ...

Ray tracing shadows prohibit the subsurface color to show through the object

Rendering - Ray Tracing - Apr 6, 2020

Ray tracing shadows prohibit the subsurface color to show through the object. ...

TimeSynth Counts Beats: 1,2,3,0

Audio - Apr 2, 2020

TimeSynth Counts Beats: 1,2,3,0 Link to project files: https://forums.unrealengine.com/unreal-engine/announcements-and-releases/asset-sharing/1724414 ...

Moving assets in the Editor fails to fixup references causing the project to generate errors

Tools - Mar 30, 2020

Moving assets in the Editor is very unreliable. References may or may not be fixed up. No direct error is presented or a warning about problems. Any moves of the gameinstance, string table or certai ...

Crash When Opening a DataTable Based Off a Struct With a Timecode Variable

Tools - Sequencer - Mar 30, 2020

When a datatable is based off a struct with a timecode variable it will crash when opening. Found in 4.24.3 CL#11590370 Reproduced in 4.23.1 CL#9631420, 4.25 Preview 4 CL#12366721, 4.26 CL#12123513 ...

Making a navigation system 'strictly static' affects all subsequently created navigation system instances

Gameplay - AI - Mar 26, 2020

The problem is a result of two things: UNavigationSystemV1::bStaticRuntimeNavigation being staticUNavigationSystemModuleConfig::UpdateWithNavSysCDO copying the data from nav sys CDO, including bStat ...

Desynchronised playback of firstime played SoundWaves with active AudioStreamCaching

Audio - Mar 25, 2020

The SoundWave in the Content folder of the attached Project has been exported from Nuendo @ 120BPM 4/4, with a duration of exactly 1 Bar. The BP_Audio Actor uses the TimeSynthComponent to provide sa ...

Calling Finish Recording Output causes a crash in PIE

Audio - Mar 23, 2020

The Finish Recording Output node from the Audio Mixer BP Library crashes due to an invalid Path input. This is a regression from 4.23.1 (CL-9631420).  This was reported and tested in 4.24.3 (CL-115 ...

Ribbons Don't Follow Their Source Particles When Scaling

Rendering - Niagara - Mar 23, 2020

When Ribbon Data in a particles system that is following is scaled in an instance the ribbons scale appropriately, but they don't follow updated location of their source particles. See the attached ...

Compiling blueprints with a reroute node attached to a class variable to a "Spawn for gameplay task" causes the pin to "instigator" to disconnect

Gameplay - Mar 20, 2020

Creating a reroute node between a class variable and a "Spawn actor for gameplay task's" class pin will cause the variable attached to the instigator pin to disconnect. ...