Unreal Engine Issues

Static mesh cube with 3 convex elements jitters when enlarged and settling on a convex static mesh at 30 FPS

iOS/tvOS fails to build from source editor built with Xcode 9.3, macro expansion producing 'defined' has undefined behavior

Trying to launch on or package for TVOS or iOS from a source build of Mac or Windows will fail with errors:[2018.04.02-16.35.08:522][634]LogPlayLevel: In file included from /Volumes/Storage/GitHub ...

Crash on garbage collection - Encountered 20 object(s) breaking GC Clusters assumptions.

Garbage collection crash during opening cinematic. Note after crashing and relaunching the game the saved file appears as 8% complete instead of 0%. Note this crash is also occurring with //UE4/D ...

Material With Hair Shading Model Draws On Top Of SSAO

The Hair shader no longer allows ScreenSpace AO on areas of the screen it occupies. While in the Ambient Occlusion Visualizer it appears that the material draws on top of the SSAO. REGRESSION? Yes ...

[CrashReport][GPUCrash] UpdateRadianceCaches

#13 crash out of 3051 in UE 5.7.3 on Windows#3 crash for UE - Rendering - Graphics Features in UE 5.7.3 on Windows#3 crash for UE - Rendering - Graphics Features - Ray Tracing in UE 5.7.3 on Windows ...

Refraction does not display properly on Android devices

A user has reported that Refraction does not affect Translucent or Masked materials at all on Android. It is also limited in how much it affects Opaque materials. Regression?: No This has been test ...

Crash on level change when "Use Single Process" is false and "Play as Client"

When "Use Single Process" is off (unchecked/false) and "Play as Client" is selected, using the console command "Open [LevelName]" causes the editor to crash Regression: No - same behavior occurs in ...

Setting inherited variables in child blueprint crash editor

PIE without compiling child blueprint (3rdSpiderPawn in example) that is attempting to affect an inherited variable will crash the editor. Additional Information: User has several cast to nodes ca ...

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask

Editor crashes while switching to paint mode if material has a grass output and landscape visibility mask. Frequency: 3/3 ...

Array of Instanced Objects on Component Does Not Propagate to Children Correctly

Attempting to add an entry to an array of instanced objects is not correctly displaying that entry in a child class based on that actor. It is expected that the inherited component in the child acto ...