Blueprint debugger: variable getter node displays wrong object's value

UE - Gameplay - Blueprint Runtime - Jul 28, 2023

After triggering a breakpoint in blueprint, variable getter nodes can display the value of a different object than the node's target. For example: if an actor class has a value MyBool and the bluepr ...

FArchive broke operator<< for bool in Editor builds

UE - Foundation - Core - Feb 16, 2017

Looks like CL-3215392 added changes in FArchive where the operator<< method for bool is a member operator in Editor (as opposed to a global operator in non-editor and old builds). This causes shado ...

[CrashReport] <unknown module>!UE4Editor_TrueSkyPlugin!FTrueSkyPlugin::RenderFrame()

UE - Graphics Features - Mar 6, 2017

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: Access violation - code c0000005 ( ...

Undoing pasting a component will crash ([CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::IsValid() [weakobjectptr.cpp:48])

UE - Gameplay - Components - Jul 20, 2017

This is a common crash affecting users in 4.16. The callstack is similar to [Link Removed], which was fixed in 4.13. User DescriptionsAccidentally duplicated a blueprint with multiple static mesh ...

SceneColor in surface material ignores translucent objects

UE - Graphics Features - Sep 22, 2017

Translucent meshes and particles behind an actor who's surface material uses SceneColor node are not rendered properly. Changing the view angle of the camera causes the translucent meshes to "pop" ...

Actor Component Replication Not Working on Dynamically Spawned Components in Blueprint

UE - Networking - Aug 7, 2018

Actor components that are spawned dynamically through Blueprint are not being properly replicated to the client.  Found in 4.20 CL# 4233996 and reproduced in 4.21 Main CL# 4258917 Unable to test i ...

Find Session and Join Session to join a session over LAN on iOS is inconsistent and requires being run multiple times to work

UE - Networking - Aug 8, 2018

Attempting to use Find Session / Join Session to join a LAN session on iOS results in inconsistent results, requiring the client to press the join button multiple times to join properly. Currently ...

Component Array doesn't update properly when using Text Variables

Tools - Sep 19, 2018

A Component Array doesn't update properly when using Structure Variables. Any array elements added after the setup don't get printed when the event is called. If you set the "Editable when Inherited ...

Collision settings of an Instanced Static Mesh setup in the Construction Script are not preserved when the Actor is added to an Instanced Level

UE - Framework - Components - May 23, 2022

Tested in //UE4/Release-4.27 CL 18319896 using Level Streaming the camera was ignored by the ISM_Cube. Collision settings of an Instanced Static Mesh setup in the Construction Script are not preser ...

Split screen causes rendering issues with lightshafts

UE - Graphics Features - Feb 21, 2018

There is an issue occurring where Split screen causes rendering issues with light shafts. This issue does not occur if you use the command " r.lightshaftquality 0" The issue no longer occurs. This i ...