Error when exposing a tMap/tSet on spawn and connecting it to a custom event

UE - Gameplay - Blueprint - Jul 12, 2017

When using a variable that has been setup to be a container of the type "Set" or "Map" and error will be thrown when connecting an exposed input pin to a custom event. ...

Blueprint compile failure with empty FTimerHandle return value

UE - Gameplay - Blueprint - Jul 13, 2017

Blueprint compile failure when returning a Timer Handle from a function call when the Timer Handle node is not connected. Compile failure message: "ICE: The type of property %s doesn't match a term ...

Accessed None for Sequence Actor references in project upgraded to 4.17

UE - Anim - Sequencer - Jul 14, 2017

In a project upgraded from 4.16 to 4.17, the level sequence doesn't play on first PIE and returns Accessed None errors. Next time you PIE, it plays fine. This now happens every time you re-open th ...

Server crashes when client connects after Server has reloaded a sublevel with a deleted actor

UE - Networking - Jul 13, 2017

UNetDriver::DestroyedStartupOrDormantActors maintains a list of deleted startup (and dormant) actors. This is used to notify clients that have joined the server of Actors that need to be destroyed ...

Crash upon using EComparisonMethod as a variable in a struct

UE - Gameplay - Blueprint - Jul 17, 2017

Having a variable of the type EComparisonMethod inside of a struct causes the editor to crash. This could be due to the variable being as part of the Development folders in code. Attempting to repro ...

Post Process AnimBP is no longer initialized in Persona Viewport

OLD - Anim - Jul 20, 2017

Post Process AnimBPs used to be processed in the persona viewport. This could have been intentional. Occurs on? 4.14 - 3249277 - NO 4.15 - 3450819 - YES 4.16 - 3466753 - YES 4.17 - 3545186 - YES ...

widget shows up solid white on iOS

UE - Platform - Mobile - Jul 24, 2017

The web browser widget does not appear to load correctly on iOS. It appears as a solid white block. This has been seen on: iPhone X, v11.4 (A11 Bionic) iPhone 6, v11.4 (A8) It did not occur on a ...

Unable to PIE + Crash after editing SColorGradingPicker

Tools - Jul 26, 2017

Changing Color Grading settings of a post process volume and using "Enter" to commit changes prevents the editor from entering PIE / Simulate mode with the error message "Can't Play In Editor / Simu ...

Material Parameters aren't unique if the Material Function has been duplicated

UE - Graphics Features - Jul 31, 2017

Material Parameters aren't unique if the Material Functions has been duplicated, When the parameters are enabled in a Material Instance, one will be disabled on Material Instance close. This is a r ...

Android movie player doesn't work with ES 3.1

UE - Platform - Mobile - Jul 27, 2017

Niether movie playback Startup Movies Play on ES3.1 ...