Anim State Notifies Don't Consistently Fire Begin/End Events for Looping Anim Sequences

UE - Anim - Runtime - Anim Blueprints - Jun 9, 2025

If you have an Animation Notify State and set it up on an animation to start at the exact beginning of the anim sequence and finish exactly at the end (I have attached a picture of this). It doesn't ...

Critical Errors when replacing references of blueprints

Tools - Mar 26, 2015

If an instance of a blueprint is in the scene selecting it and another blueprint and choosing the option to Replace references of the one in scene with the other will cause Critical Failure errors. ...

Re-importing animations from .fbx created in blender stops animation from correctly animating

OLD - Anim - Feb 4, 2016

Re-importing animations from .fbx created in blender stops animation from correctly animating. ...

Custom functions can call Set Timer nodes

UE - Gameplay - Blueprint - Nov 11, 2015

Custom functions can call Set Timer nodes. There are no other time related functions that can be called through custom functions. Calling a timer through custom functions seems to lead to editor cra ...

Render Target as Material Image in UMG is Clipped when setting Fullscreen in Standalone (Alt+Enter)

UE - Editor - UI Systems - Jun 1, 2015

Render Target Material is clipped as an Image within UMG when attempting to set to fullscreen while playing in Standalone mode. The interesting thing I noticed about this bug is that the issue is n ...

FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970

UE - Editor - UI Systems - Localization - Mar 30, 2015

FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970. From a conversation on Slack with MaxP: this is probably an underflow the ICU based string format ...

Multi Line Trace by Channel includes Actors with Overlap collision in the Out Hits array

UE - Gameplay - Apr 13, 2015

Multi Line Trace by Channel includes Actors with Overlap collision in the Out Hits array (but does not indicate a True Return Value). The two returns match with Ignore and Block collision settings. ...

Printing the result of the 'Get Move Ignore Actors' node will crash the editor

UE - Gameplay - Blueprint - May 6, 2015

Printing the result of the 'Get Move Ignore Actors' node will crash the editor. The Licensee found the issue while exploring a workaround for this JIRA:https://jira.ol.epicgames.net/browse/UE-14734 ...

Linux editor splash screen does not show Unreal Editor

UE - Platform - Linux - Mar 9, 2016

The title text for the editor's splash screen displays the text 'EDITOR' in a small font that is not bold. I do not see this issue on Windows. REGRESSION: Yes Worked: 2824270 Broken: 2891838 ...

BP editor - Unable to edit details of a native component named as 'RootComponent' in C++ code.

UE - Gameplay - Components - Aug 26, 2016

Looks like maybe the PropertyView stuff doesn't like it when the subobject name matches the parent's object property name? In this case the CDO is the object that will be selected to the PropertyVie ...