Blocking volumes moved into sublevels from the persistent level do not correctly function in standalone game

Tools - Jun 9, 2015

If a blocking volume is created in the persistent level and then moved to a sublevel, it will no longer correctly block objects in standalone game. ...

Custom Events with duplicate input names will not compile

UE - Gameplay - Blueprint - Jan 12, 2015

Custom Events with duplicate input names will not compile. This does not occur immediately: creating two Custom Events with two identically named inputs will not cause a compile error, but if you re ...

Overridden Interface Functions in Child BPs lose array output pins after closing/reopening the project and become invalid

UE - Gameplay - Blueprint - Feb 7, 2015

Overridden Interface Functions in Child BPs lose array output pins after closing/reopening the project and become invalid. Reproduced in Main //depot/UE4/Promotable-CL-2434822 ...

UMG Throbber is not showing in project when using 'Set Number of Pieces' node off of Event tick

UE - Editor - UI Systems - Apr 22, 2015

If you add a throbber to a UMG Blueprint and use the Graph of the Blueprint to change the 'Set Number of Pieces' and use 'Event Tick' to tick the widget, the throbber widget will not appear on scree ...

Renaming Blackboard Key Not Updating Behavior Tree References

UE - AI - May 17, 2016

When renaming a blackboard key using the Entry Name box in the key's details panel, the names of the references in the behavior tree are not updated automatically. This is inconsistent behavior be ...

Replacing Selected Actors does not replace all references.

Tools - Oct 21, 2015

When using the "Replace Selected Actors with" feature in the editor, references to the replaced actor are not updated to reference the new actor (where valid). They will appear to be replaced until ...

bIsComposing assert with Japanese MS-IME input(candidate list related)

UE - Editor - UI Systems - Localization - Apr 18, 2017

When using MS-IME as Japanese input method, scrolling out the text field out side the view causes bIsComposing to be set false - this state causes instability of the editor. Crash happened with Win ...

[CrashReport] UE4Editor_Sequencer!FSequencer::Tick() [sequencer.cpp:439]

UE - Anim - Sequencer - Aug 21, 2017

This is a common crash that has occurred since at least the 4.10 release, although there seems to be a gap where it may not have occurred through the 4.12-4.14 releases, but returned with 4.15. Use ...

Level cannot save when compile setting is changed on blueprint present in level

UE - Gameplay - Blueprint - Aug 21, 2017

When using a project that has a blueprint in a level when the project is created, there is an issue that is occurring when you modify the compile settings and attempt to save the level There is an e ...

Fix delegate problems with Blueprints

UE - Foundation - Core - Feb 18, 2015

https://udn.unrealengine.com/questions/236428/bug-blueprints-executing-zombie-code.html Blueprint MyCharacter is based on native class CodeFirstPersonCharacter. CodeFirstPersonCharacter has compone ...