Unreal Engine Issues

Fix SourceLength to be tangent to spot light axis

Dynamic Input and Function Scripts fail to compile by default

All Niagara Scripts are uncompiled by default. This has been logged ([Link Removed]). Compiling the script resolves the warning noted in 66593 for Module and Function Scripts. Dynamic Input Scripts, ...

Fix function forwarding in demo drivers in instant replays

Demo drivers that are actively playing back a replay while still connected to another server as a client (via game net driver) will generate warnings due to the function forwarding code (UNetDriver: ...

Material editor: Parameter grouping does not work within functions

When a parameter is placed directly within a material it's group assignment works. The parameter is listed within its group in material instances. This does not work with parameters that are creat ...

Blueprint functions with component targets lose component target when copied/pasted

Functions that are created with specific component targets lose their target when copied/pasted. ...

Go To Definition fails quietly for Native functions with no definitions

Go To Definition fails for Set and Map Utility nodes (does not seem to affect Arrays). A warning similar to the following appears in the output log:LogSelectionDetails: Warning: NavigateToFunctionS ...

Widget functionality broken when removing / recreating the same widget from a widget component

When SetWidget is called, the call to Widget->MarkPendingKill(); causes the widget to lose functionality if the widget being created is the same as the widget previously removed. ...

Functions overriden from Parent BPs are not called in Child BPs when nativized

When nativization is enabled, functions in a child blueprint that were overriden from the parent are not called properly. Regression?: Yes This did not occur in 4.19 ...

Crash when launching dx12 for the first time with Rect Lights

Users on the forums are hitting a crash on their initial launch of the engine into dx12. There is currently a workaround to load into the project with dx11 first, compile shaders, then youre fine to ...

The 'Add Movement Input' node no longer functions on a Default Pawn

The 'Add Movement Input' node no longer functions on a Default Pawn. This worked in 4.5.1 & 4.6.1. ...