Build fails when packaging a specific map that is not using an exclusively nativized blueprint

Gameplay - Blueprint - Oct 17, 2017

REGRESSION: Yes, in 4.17, the following warning occurs instead:UATHelper: Packaging (Windows (64-bit)): Project.GetBlueprintPluginPathArgument: WARNING: Failed to find generated plugin for Blueprint ...

Media Player freezes project in shipping build of game

Sequencer - Media Framework - Oct 17, 2017

When using the Media Player freezes project in a shipping build of the game, the game will freeze and the only way to quit will be to forcefully close the program. This issue is a regression. Versi ...

Projects cannot be built and opened in DebugGame from the commandline

Core - Oct 16, 2017

Code projects in 4.18 cannot be opened in DebugGame from the commandline. REGRESSION: Yes. This worked successfully in 4.17.2. The attached log is from 4.19. The log for 4.18 was similar. ...

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

Gameplay - Blueprint Compiler - Oct 13, 2017

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 ...

Editor freezes when editing sub-level referenced by more than one level

Tools - Editor Viewport - Oct 12, 2017

This bug occurs when more than one level references the sublevel. Occurs in 4.18P4 CL 3676890 Unable to reproduce in 4.17. This is a regression. ...

Landscape Shaders Unknown by Landscape Thumbnail: Add to AllowedShaderTypes or ExcludedShaderTypes

Tools - Landscape - Oct 12, 2017

When packaging Elemental Demo and Vehicle Game for Linux from Windows, multiple Landscape Shader warnings are encountered complaining that the shader is unknown by the landscape thumbnail material a ...

[CrashReport] UE4Editor_SequenceRecorder!<lambda_ffd596aba4580204f4fb2f5c21d9754c>::operator() [actorrecording.cpp:139]

Sequencer - Oct 12, 2017

This is a common and longstanding crash that has occurred since at least 4.14. User DescriptionsRecording sequencer cinematic on character panw. Using Vr static meshes. A sequencer object was alrea ...

Navmesh does not update when undoing the scaling of Navmesh Bounds Volume

Gameplay - AI - Oct 10, 2017

REGRESSION: Yes, does not occur in 4.17.2 Navmesh does not automatically update when the user undoes the scaling of a nav mesh bounds volume. This issue occurs with both changing the scale in the ...

Timer does not work in Object Class Blueprint

Gameplay - Blueprint - Oct 10, 2017

After creating a timer in an Object Blueprint, timer is not called as intended. "InitObject" Event fires but "Call Function" function does not Reproduced in: 4.17.2 CL 3658906, 4.18 P3 3676890 Un ...

[CrashReport] UE4Editor_PropertyEditor!SDetailSingleItemRow::OnArrayDrop() [sdetailsingleitemrow.cpp:172]

Tools - Oct 10, 2017

This is a trending crash coming out of the 4.18 previews. Users have not provided any descriptions of their actions when the crash occurred. The callstack shares similarities to UE-49839 which was ...