Editor crashes when adding custom CameraComponent to BP with CameraSettings hidden

UE - Gameplay - Components - Oct 8, 2015

Using the HideCategories = (CameraSettings) specifier inside a custom CameraComponent class will cause the editor to crash when the component is added to a blueprint. Restarting the editor will sho ...

Spawn Emitter Attached not working in Packaged Game

UE - Niagara - Apr 2, 2016

Spawn Emitter Attached not working in Packaged Game. Not sure if it isn't spawning the emitter or if it is spawning at the wrong location. ...

Crash when Deploying to iPad Air with BC4 Texture Compression Setting

UE - Platform - Mobile - Jun 7, 2016

App/project crashes when setting a texture's compression settings to BC4 and deploying to the iPad Air. As the user in the op states on AnswerHub, the problem seems to lie with specific texture com ...

Delay nodes used in a macro cause subsequent macro calls during the delay to never complete

UE - Gameplay - Blueprint - Sep 6, 2016

Calling a macro that has a delay node again before the original call's delay could finish will cause the second call to be ignored when reaching the delay node. This did not occur in 4.12.5 and is n ...

Crash when trying to find references to blueprint Structure node

UE - Gameplay - Blueprint - Oct 12, 2015

Right clicking on a struct node inside a blueprint and selecting the "Find References" option will cause the editor to crash Crash Reporter: [Link Removed] ...

Collision jitters when going up stairs, causing erratic overlap events.

UE - Simulation - Physics - Jan 11, 2016

When overlapping with another object while moving up stairs with a character, the overlap events (OnBegin / OnEnd) that occur will be called multiple times in an alternating fashion. This will also ...

Reimport Ignores Convert Scene Unit and Convert Scene Settings

Tools - Nov 16, 2016

When importing an FBX with a unit scale that is different from UE4's unit scale it will import correctly by unchecking Convert Scene Unit and leaving Convert Scene checked. If you reimport the mesh ...

Set mouse position node does not appear to work the first time it is called in stand alone

UE - Gameplay - Input - Nov 17, 2016

Set mouse position node does not appear to work the first time it is called in stand alone. The node has to be called twice before the correct position is set for the mouse ...

Hot reload breaks code based struct array used in blueprints

UE - Gameplay - Blueprint - Mar 21, 2016

When an array of a struct, defined in code, is used in a blueprint, preforming a hot reload after making changes to the class with the struct will cause the blueprint nodes relating to the struct be ...

Editing static functions in Blueprint Function Libraries with hotreload can cause saving issues with blueprints calling them

UE - Gameplay - Blueprint - Sep 26, 2016

When editing a Static function from a Blueprint Function Library, any blueprints that have already had it added are unable to be saved. This can be worked around by removing the node and adding it a ...