Unreal Engine Issues

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 ...

VisibleAnywhere specifier doesn't prevent components from being edited in property windows

Using the VisibleAnywhere specifier in a UPROPERTY declaration does not prevent a Component's properties from being edited in property windows. This conflicts with the description of this specifier ...

FastXML doesn't parse attributes with legally unescaped single and double quote characters

In XML, single or double quotes can be used to surround an attribute value. Furthermore, it is legal to use whichever character isn't chosen within that attribute value without escaping it. Currentl ...

NaN is handled differently when clamped on Windows and Android/iOS

NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...

[Feature Request] Dialogue appears behind screen space widgets

Dialogue text appears behind screen space widgets ...