Unreal Engine Issues

SceneTexture:WorldNormal Expression failing to Compile in World Align Blend Function

While attempting to modify the World Align Blend function in order to map decals to a surface based on a world vector input, I discovered the function fails to compile while passing the SceneTexture ...

Delegate fixup doesn't work when bound functions are not in the current BP

When BP functions are bound to native delegates with float parameters, we perform fixup on the BP functions such that their float parameters are converted from double precision to single precision. ...

Calling a parents function that is used in a child blueprint from a spawn actor from class node that is being called back in the parent will cause an error

If the user calls a function (We will call it "Parent's Function") from a child blueprint and then turns around and tries to call that implementation of the Parent's Function with in the parent it's ...

Stationary Sky Light has double lighting contributions to StaticMeshActor on MobilePlatform

Incorrect number of parameters in empty Shipping version of the DrawDebugString() function signature

The DrawDebugString() function has to versions. One is the actual function to display a string of debug text in non-Shipping builds, and the other is an empty function that is used in Shipping build ...

Blueprint deleting Variables, kills function parameter shortcuts with same name

When deleting a variable that shares a name with a function parameter. The references to the function will be deleted as well. ...

Pink lighting artifacting on Mac

There are pink lighting spots around the level when opening ContentExamples on Mac. Lighting starts out more intense but fades as the level loads in. Also occurs in new FirstPersonBlueprint templat ...

ChildActorComponent requires lighting to be rebuilt each time level is opened

I was able to reproduce the loss of cached lighting data on latest, however I did not hit the code that emits the warning message as noted in the thread. ...

Blueprint Functional Tests Failing When Run Dedicated Server is Enabled

When Run Dedicated Server is enabled, it appears that functional tests are not able to succeed. The following error is appearing in the Automation Test Results: No functional testing script on map ...

Get Mouse Position Blueprint node returns different values outside of viewport depending on whether it was called from Event Tick, or within an Actor function

There seems to be a discrepancy between the output of Get Mouse Position node depending on whether the node is inside an Actor function or called from Event Tick. If the node is present inside a fun ...