Unreal Engine Issues

BuildGraph cannot create installed build for Windows

Attempting to create an installed build of the Engine for Windows using BuildGraph currently fails when the process attempts to copy some Linux files to the installed build. This appears to be due t ...

K2Node_SwitchEnum doesn't use EnumRedirects

Combobox shows no text in android device using Mac.

This issue is reproduced in 4.16 preview 3 version and in Mac, deployed into android device. And not reproduced in windows pc. Not reproduced in 4.15.2 launcher version(regression) Not reproduced on ...

Collision Viewmodes do not affect Instanced Meshes properly

Collision View modes, such as Player Collision and Visibility Collision, do not work with Instanced Static Meshes. Regression?: No This also occurred in 4.18 ...

App closes when loading a sublevel that contains a nav mesh when Async loading is enabled

Android App appears to close when using a combination of nav mesh volumes, async loading and Gear VR. ...

Templated enum GetValueAsString function returns incorrectly formatted string

For many years there has been a static function on UEnum called GetValueAsString which would convert an enum like EAttachmentRule::KeepWorld to the string "KeepWorld", if you passed in the explicit ...

Crash in AWorldDataLayers::InitializeDataLayerRuntimeStates() when quickly unloading then loading a sub-world partition

From licensee: Since we integrated 5.5, we are experiencing a crash in AWorldDataLayers::InitializeDataLayerRuntimeStates() on this line check(ActiveDataLayerNames.IsEmpty() && LoadedDataLayerN ...

Expanding and altering a macro affects other macros in use.

Using the Expand node feature on a macro from a macro library alters the current functionality of other instances of the macros that are in use(even though the macros themselves have not changed). ...

Nativizing a blueprint interface using TMap/TSet causes Fatal error in UHT

FPropertyBase constructor does not handle a TMap/TSet property. Following workaround can avoid this error. explicit FPropertyBase(FProperty* Property) : PropertyExportFlags(PROPEXPORT_Public) ...

Packed level actors and Level instances are sometimes not included in HLOD build on a World Partition Level

Context World Partition - Hierarchical Level of Detail (HLOD) system uses custom HLOD Layers to organize large amounts of Static Mesh Actors and generate a single proxy mesh and Material. Problem T ...