Unreal Engine Issues

Core Class Redirect doesn't work when converting from a C++ class to a BP

The Export map will properly be updated but the creation of the import will fail with SourceIndex == INDEX_NONE From MarcA:  I'm guessing the import source index is always none for native classe ...

Failed to register input back buffer crash when opening a project with PixelStreaming on Windows 7

Projects crash upon opening with the PixelStreaming plugin enabled. ...

Fbx Exporter: If 2 sections use the same material, one section will have a wrong material in the fbx.

InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights

This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...

Visualization View Mode Shader Complexity when in Mobile Preview Vulkan with MMV will crash the editor

Moving or changing the name of a project's GameInstance will switch the Game Instance Class to None and crash launched games

If the GameInstance set in Project Settings > Maps & Modes > Game Instance Class is renamed or moved to another folder, the Game Instance Class is switched to None. This causes a launched game to cr ...

Calling a native interface function implemented by a non-nativized Blueprint asset from a nativized Blueprint asset will silently fail at runtime.

In the sample project we have a Widget Blueprint asset (SomeWidget) that implements a native interface (PrintSomethingInterface.h). However, in the DefaultEditor.ini file, we've also excluded all Wi ...

Renaming a Struct variable that is used in a Widget BP creates 'Warning: Unknown property in' warnings in the Output Log

Renaming a Struct variable that is used in a Widget BP creates 'Warning: Unknown property in' warnings in the Output Log User Description: I think this should be brought up as these seems to be a ...

Blueprint instance with NiagaraComponent cannot keep its user parameters, it will restore to the default values after reopening the level

Rotate child relative to parent and a grandchild or great grandchild will leave collision box behind

The collision with meshes appear to be broken in relation to parent and a grandchild or great grandchild collision boxes. ...