Unreal Engine Issues

PerInstanceRandom does not work on Instanced Static Meshes spawned at runtime

PerInstanceRandom does not provide a random value when the material is being used on an Instanced Static Mesh that is spawned at runtime, the value is always the same. Regression?: Yes This did not ...

Editor freezes when creating a Collection named 'AUX'

When a collection is created, naming the colleciton AUX causes the editor to lock up, requiring a force close from the task manager. Note: Naming the collection something else and then renaming it ...

Illegal names are accepted when creating a Content Browser Collection in code

When a Collection is created in code (see code snippet), the collection accepts names with illegal characters such as periods or spaces. Creating a collection through the editor properly warns that ...

Enums in BP Structures display as Byte on Struct save

When an enum variable is added to a BP struct, saving the struct causes the enum to display its type as a Byte rather than the specified enum. Regression: Yes - This behavior does not occur in 4.16 ...

Memory usage regression in the editor caused by FArchiveAsync2 buffers

Owner No See option does not correctly apply to widgets using screen space

When using the Owner No See option with Widgets, if the widget is set to display on the screen rather than the world, then the option does not affect the widget as intended. Other forms of changing ...

Slomo command has no effect when Run Dedicated Server is set

Using the slomo # command when Run Dedicated Server is set has no effect. Command still functions when this checkbox is set to false. Regression: No, same behavior occurs in 4.16.3 ...

Blueprint needs to be compiled if another blueprint sharing an interface is compiled

Blueprint needs to be compiled if another blueprint sharing an interface is compiled Regression: This does not happen in 4.16 ...

Unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled

When going through the engine content you are unable to select SimplePivotPainterExampleMat Instance's parameter settings if Param button is disabled. If the button is enabled the settings appeared ...

The instructions to add a new parameter on event dispatchers in My Blueprints is out of date.

The "Inputs" section in the details panel states "Please Press the + Icon Above to Add Parameters," but there is not a "+" icon above. There is now a "New" button to create a parameter. ...