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 ...

Post process settings struct will not open/break to adjust individual settings

UE - Gameplay - Blueprint - Nov 12, 2015

attempting to break the post process settings struct or split a post process settings struct pin causes pin to disappear, leaving a blank target node. ...

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 ...

BC7 Format in Texture Asset Mip Maps are not correct

UE - Graphics Features - Apr 18, 2016

When enabling BC7 compression format for a texture in a project that has SM4 disabled will result in the last two Mip Levels being gray. This happens on any texture size. The number o mip levels may ...

[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 ...

Collision problem in nativized blueprint

UE - Simulation - Physics - Jan 29, 2019

Issue reported by one of our licensee on the Japanese UDN https://udn.unrealengine.com/questions/480660/view.html ...