Editor crashes when calling "Begin Draw Canvas to Render Target" on Event Tick

Rendering - Aug 20, 2020

The recent hotfix caused this workflow to begin crashing. User reports that it worked as intended in 4.25.2 (CL-13908680). We are unable to reproduce it in 4.24.3 (CL-11590370) either. Crash is ha ...

Changes to local project settings (Project/Saved) are not propagated to the default ini file upon using "Set As Default" if that file is currently checked-in/read-only

Tools - Aug 20, 2020

Changes to local project settings (Project/Saved) are not propagated to the default ini file upon using "Set As Default" if that file is currently checked-in/read-only. ...

CoreSymbolication.framework fails to load on macOS 11 Big Sur

Platform - Mac - Aug 20, 2020

CoreSymbolication.framework has moved, likely into the system library cache. The function, FApplePlatformSymbolication::EnableCoreSymbolication probably needs to be updated in order to accommodate.d ...

RetainerBox may cause memory leak

Tools - Slate - Aug 20, 2020

Essentially, this memory leak should be counted in the UI section, but it is counted in the SceneRender section. This seems to be due to the behavior of MemStackAllocator and FixedSizeAllocator. Th ...

Planar Reflections distorted if Separate Translucency Screen Percentage less than 100%

Rendering - Aug 19, 2020

Planar reflections with any value lower than 100 for SeparateTranslucencyScreenPercentage are skewed/distorted when moving the camera, not representing the correct image when the value is 100. ...

ObjectScale node in the material editor does not work with decals

Rendering - Aug 19, 2020

The ObjectScale node does not output the correct values in the material editor. This method works to tile images with a Surface Material Domain on a basic plane, but does not work when using it with ...

Some developers reporting incorrect Preview in VR resolution for Steam VR

XR - Aug 18, 2020

VR Preview Window is the wrong resolution, just showing the top left portion of the entire view. Somewhat similar symptoms to -UE-81377-, not exactly the same though.   This issue has not been rep ...

Crash when creating nested child actors

Gameplay - Blueprint Compiler - Aug 18, 2020

Setting the root of the furthest child actor results in a crash after pressing compile on the blueprint. Example project: [Link Removed] ...

OnAudioPlacebackPercentage PlaybackPercentage (float) doesn't take into account "Start Time" from Play or FadeIn nodes

Audio - Aug 17, 2020

PlaybackPercent on the OnAudioPlaybackPercent event does not account for Start Offset from the Play or FadeIn node. Reported and tested in version 4.25.3 (CL-13942748) and version 4.24.3 (CL-115903 ...

nDisplay Crash in DisplayClusterDeviceBase.cpp

Tools - nDisplay - Aug 14, 2020