Unreal Engine Issues

UMG widgets with instanced properties reset those properties to default on compilation

This is perhaps a misuse of Instanced properties but the repro info is good so I thought I'd better add it to Jira. See Additional Info URL for details. Checked and happening on: //UE4/Main CL-2884 ...

Renaming the function for a bound event will cause the event to stop working

A user found that when renaming a binding for a mouse down event for a border widget that the event would no longer fire off. They only worked as long as the default name was used. ...

API version is incorrect for licensee versions

Reported by a licensee: We currently force the MODULE_API_VERSION to be the same as our release of 4.8.0, even if licensees are using a custom version scheme. This can cause content that will refus ...

Screen Position shares TextCoord coordinate space

ScreenPosition is not updating when the viewport is resized. As the viewport is made larger, screen position scales to match this larger area. As the viewport is made smaller, screen position contin ...

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash

Clicking the Add Variable button in a Struct that is referenced as two inputs in a function that is called in an Actor Blueprint's Construction Script causes a crash. This does not occur in the Even ...

Engine.AIControllerClassName doesn't work when pointing at game-specific controller class

Engine.AIControllerClassName is being used in APawn's CDO creation, and if game-side AIController class is indicated it may not be available yet, which results in APawn not having AIControllerClass ...

Collisions doesn't work at BeginPlay against Instanced Meshes if their Mobility is Static

User reports that in 4.8 in some cases bodies for Static-mobility ISMC instances are not yet initialized when BeginPlay is called. It seems like deferred creation for level streaming should be com ...

Paper2D JSON files are being imported as Data Tables

Since Data Tables were changed to allow importing from JSON files, this has stopped the Paper2D importers from working. We need the Data Table import to be lower priority than anything else to allo ...

UGameViewportClient::LostFocus() flushing input when focus is still on a descendant

See UDN thread. Can we check HasUserFocusedDescendants() so we don't flush keys when the focus is still inside the viewport? ...

No easy way to disable a sense in AI perception