Unreal Engine Issues

Static mesh created from bsp will not properly duplicate if original copy of mesh in viewport is used

If a bsp is turned into a static mesh and then the original mesh in the level is duplicated, it will register as duplicated in the world outliner but the mesh will not appear until re-assigned in th ...

Memory Leak occurring when making procedural content with the Construction Script

When modifying an object that makes changes using the construction script seems to cause a memory leak. The memory that is used seems to never be freed up. ...

DefaultEngine.ini Configurable Variable change ignored in Standalone (may be a compilation manager issue)

If you change a configurable variable's default value in DefaultEngine.ini, the change will be ignored in Standslone mode until you compile and save the variable's blueprint. This causes inconsiste ...

Niagara System Doesn't Update Mesh Renderer If Static Mesh is Changed in the Emitter

The Niagara System doesn't update the mesh renderer If the Static Mesh is changed to an Imported Mesh in the source emitter Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL#  5470758 ...

Animation attributes - user defined structs containing types defined in plugins cannot be registered

This issue is caused by us forcing user defined structs to be loaded as part of AttributeTypes::Initialize.  That is called after at the ObjectSystemReady run phase during engine initialization howe ...

Child actor component cannot be selected within blueprint viewport

Child actor component cannot be selected within blueprint viewport. The transform can be altered and, if selected within the Components tab, the child actor component can be moved within the viewpor ...

Editor ES2 Feature Level preview and Mobile Preview PIE do not limit materials to 8 textures

Performing a Clean on a project using a binary Engine installation on Mac removes some Engine .dylib files

When a Clean is performed on a code project that uses a binary Engine installation on a Mac, some of the Engine's .dylib files are removed during the Clean process. A Clean process for a project usi ...

[CrashReport] UE4Editor_Core!FArchiveFileReaderGeneric::InternalPrecache() [filemanagergeneric.cpp:697]

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: false [Link Remo ...

The Color for the "Set Color and Opacity" node doesn't work when using the color wheel

The "Set Color and Opacity" node has a little black box that can be clicked to bring up the color wheel to set the desired color. The color wheel does not work unless the user uses the color spectru ...