Unreal Engine Issues

Creating a Blueprint using "Event Tick" and adding a "Breakpoint" constrains the user's mouse cursor to the Blueprint editor window when pressing "Play"

When adding a Breakpoint within the "Blueprint Class Actor" editor using "Event Tick," the mouse cursor becomes constrained within the editor window box immediately after pressing Play. The mouse cu ...

Moving or renaming a file in the editor should execute a Perforce move command not a delete+add

Moving or renaming a file in the editor erases its perforce history. It should execute a move not a delete + add to fix this ...

Translucent materials with tessellation

When using a material with a translucent blend mode, you can not use the lighting modes "Volumetric PerVertex NonDirectional", or "Volumetric PerVertex Directional" and the Tessellation settings "PN ...

Crash occurs when diffing blueprint that has had one of its variables changed to a Soft Object Reference

A crash occurs when diffing a blueprint that contains an array that has changed from an Object Reference to a Soft Object Reference. Note: I figured that this could be related to another bug that I ...

Building lighting after map data is built dirties level

There is an issue occurring where after the map built data is made building lighting on a level causes the level to become dirty. this occurs even if anything in the level has not been changed excep ...

Having Visual Studio 2017 Preview installed breaks engine associaition with VS

If Visual Studio 2017 is currently installed and the preview version is installed alongside it, Setting Editor Preferences>Source Control>Source Code Editor to Visual Studio 2017 will always open th ...

Importing multiple layer can lead to wrong animation conversion

Check box appears darker when wrapping it with a button

Check box appears darker when wrapping it with a button (almost black), This does not appear to happen when wrapped with other widgets. ...

UBT warning during package when nativized blueprint contains a node from a plugin

When a Blueprint contains a node that was added by a plugin (ex: GetBatteryLevel node added by Optional Mobile Features Blueprint Library), nativizing the BP in 4.16 completed fine but 4.17 gives a ...

Crash upon adding an Interface to a Blueprint that has a function name that matches the name of a variable in the Blueprint.

When you add an Interface to a Blueprint that contains a variable with the same name as one of the Interface's functions, the editor will crash upon compiling the blueprint. In 4.16, this only cause ...