Unreal Engine Issues

Default value propagation of instance subobjects doesn't work consistently

[CrashReport] UE4Editor_Cascade!FCascadeEdPreviewViewportClient::GetCascade() [cascadepreviewviewportclient.h:72]

This is a common crash affecting users in 4.16. It appears to be a continuation of [Link Removed]. Users have not provided additional information about this crash. Source Context/** Accessors */ ...

LineTraceSingleByChannel does not correctly use the collision response set for the channel being traced on

There appears to be an issue with how raycasts are performed within PxScene. When performing the trace, only the collision response for the first ECollisionChannel seems to be considered. If all col ...

Missing receipt error packaging Blueprint project for tvOS with custom iOS icon (Launcher build)

This failure occurs when trying to package SunTemple for TVOS. It did not occur with a blank blueprint project, until I added a custom iOS icon and tried to package a second time (I hypothesize th ...

Event Dispatcher not being called in 4.6

ED nodes in 4.6 but are not being executed in standalone or cooked games. Also, users receive compile errors when the project is saved and reopened that resolve when the blueprint is recompiled. ...

The Command and Control keys are swapped for Input nodes on Mac

Mac only. The Command and Control keys are swapped for Input nodes. Pressing the Left Command key triggers Left Ctrl, pressing Left Control triggers Left Cmd, and pressing Right Command triggers R ...

Crash in Standalone when using a Blueprint Library Function inside a Macro from a Macro Library

Using a Function from a Blueprint Library inside a Macro from a Macro Library will cause a crash when using Standalone Game for PIE. The same setup will function as expected when Playing in Selected ...

ChildActor Component with physics spawns at the wrong location

ChildActor Component spawns at the wrong location as long as the actor that the ChildActor is referencing has the StaticMesh set as the root and simulating physics. User Description: Basically I h ...

[CrashReport] UE4Editor_BlueprintNativeCodeGen!FBlueprintNativeCodeGenModule::GenerateSingleAsset() [blueprintnativecodegenmodule.cpp:391]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Assertion failed: bSuccess [Link R ...

[CrashReport] UE4Editor_CoreUObject!FCompressedChunk::FCompressedChunk()

This is a common crash affecting users in 4.16 and the 4.17 Previews. The two descriptions provided by users say their crash occurred after updating their project from 4.13. User DescriptionsUpgra ...