Unreal Engine Issues

Using dynamic bindings in a code class will result in the bindings becoming a permanent part of any Blueprint created from that class if a hot reload is performed.

If dynamic bindings are being used in a custom code class from which Blueprints are derived, any hot reload will make the bindings a permanent part of the Blueprint and they cannot be removed or cha ...

Regression - Inherited component properties on actor instances of derived blueprints are silently reset to defaults when the blueprint is compiled, causing data loss

In certain circumstances, when a derived blueprint is compiled, all properties from its inherited components can be silently reset to defaults on instances placed on the current level. This results ...

Local binary build fails for iOS platform.

Attempting to create a local binary build of the Engine for the iOS platform using BuildGraph is currently failing. While trying to build UHT for Mac using a remote build, the build fails because it ...

BP nativization emits incorrect C++ code for noexport-typed struct field access in some cases.

In BlueprintCompilerCppBackendUtils.cpp: #define MAP_BASE_STRUCTURE_ACCESS(x) \ BaseStructureAccessorsMap.Add(x, TEXT("#x")) Needs to be changed to: #define MAP_BASE_STRUCTURE_ACCESS(x) \ ...

Mobile Deferred Shading enabled and Preview Level Android Vulkan will crash the editor

Duplicating many Actors at once in a Level Instance while in Level Instance Edit will result in a jumbled mess of Actors on the Persistent Level

Duplicating many Actors at once in a Level Instance while in Level Instance Edit will result in a jumbled mess of Actors on the Persistent Level. The licensee has encountered this in Unreal 5.4 and ...

VS2015 Update 3 prevents the editor from compiling code

Updating Visual Studio 2015 to Update 3 prevents code projects from compiling / creating new code projects ...

'Missing Receipt' error after disabling plugin in binary build and repackaging

This was originally found with Android Launch On but also occurs Launching on to Windows with a new project. This will not reproduce when using a build from PerforceogPlayLevel: Setting up ProjectP ...

VR Preview Crash when using split screen

If the user tries to use split screen in the editor along with VR preview, the editor will crash ...

Error during packaging if nativizing a blueprint that contains a TMap with a UserDefinedEnum as a key

Certain Map container calls (e.g. Find, Add) will fail to compile at packaging time if a Blueprint class containing a Map variable with a user-defined enumeration as the key type is nativized. This ...