Unreal Engine Issues

UMG Throbber is not showing in project when using 'Set Number of Pieces' node off of Event tick

If you add a throbber to a UMG Blueprint and use the Graph of the Blueprint to change the 'Set Number of Pieces' and use 'Event Tick' to tick the widget, the throbber widget will not appear on scree ...

The Error message "Failed to add Class "YourClassName". Failed to automatically hot reload the "YourProjectName" module." appears when adding a class to a C++ project

Edit MattK: This is UserWidget specific. If we don't want users to extend this class we should figure out a way to prevent that in our wizards When trying to add a C++ class to a project the follo ...

Any Alpha value set in a FLinearColor used to draw a line on a Canvas HUD is ignored when the line is drawn

If an Alpha value is set in a FLinearColor that is used to draw a line on a Canvas HUD, the Alpha value is ignored when the line is drawn. A comment in BatchedElements.cpp indicates that some legac ...

DOF sky distance doesn't work correctly

Rolling ball physics bounces on flat landscape with low fps

It's been reported that using the rolling ball physics on a flat landscape will cause the rolling ball to bounce when it crosses a seam. It does not happen on every single seam, but it happens prett ...

Spline Array created in code cannot be edited in a blueprint

If a TArray of spline components is created in code it is not possible to edit/add nodes to the spline inside a blueprint. ...

Blackboard key filtering issues in BTTask_RunEQSQuery

User reported an issue with BB key filtering while using BTTask_RunEQSQuery. The filtering was inconsistent, sometimes filtering out keys of not matching type, sometimes not. User also reported sele ...

Cache Uniform Expressions per-sprite is tanking performance

See screenshot for an example with 5000 sprites being rendered. It's eating up 30 ms just for that. ...

While casting to a Child, the overridden function node's target will read the parent bp

While casting to a Child, the overridden function node's target will read the parent bp. Also being discussed in this Forum post: https://forums.unrealengine.com/showthread.php?66846-Initialisin ...

Cannot animate properties on Root UMG element.

The UI tells me I can do it, but I cannot. Current work-around is to insert an extra element. Not desirable. [image: Inline image 1] ...