Packed level actors and Level instances are sometimes not included in HLOD build on a World Partition Level

UE - World Creation - Worldbuilding Tools - HLOD - Mar 14, 2025

Context World Partition - Hierarchical Level of Detail (HLOD) system uses custom HLOD Layers to organize large amounts of Static Mesh Actors and generate a single proxy mesh and Material. Problem T ...

"Split Struct Pin" breaks functionality of Transform Bone node

OLD - Anim - Jun 22, 2015

Using the "Split Struct Pin" right click option on the rotation pin breaks the functionality of the Transform Bone node in Animation Blueprints NOTE: I noticed the Roll/Pitch/Yaw are in a differen ...

Duplicating an actor that calls a custom event from another actor receives compile error

UE - Gameplay - Blueprint - Jun 23, 2015

Duplicating an actor that calls a custom event from another actor receives compile error until the node is removed and replaced. ...

Opening Gameplay Debugger while in PIE removes print string output from screen in subsequent PIE modes

UE - AI - Apr 23, 2015

If a user opens gameplay debugger ( ' pressed while in PIE), all print string outputs to screen disappear, and will no longer appear during any PIE session until editor is closed and re-opened. Wo ...

Editor Crashes when copying/pasting a custom event function that was within a separate function to an event graph if the custom event was created in another blueprint

UE - Gameplay - Blueprint - Jan 16, 2015

Editor crashes when a custom event node is called as a function within a different blueprint in a separate function, then copied and pasted into the event graph of the second blueprint, the executio ...

Chinese Characters causing the Editor to crash when using them in a blueprint

UE - Editor - UI Systems - Localization - Dec 4, 2014

When using Chinese characters in Blueprints, it will almost always see a crash when saving the project and PIE. This only occurs in the 4.6 release build. It does not occur in Main. Crash Report: ...

Very difficult to drag off of nodes on touch screen laptops.

UE - Gameplay - Blueprint - Jan 30, 2015

When using a touch screen laptop, it is very difficult to drag off the exec of nodes. I was able to drag off of a node 2 times after trying around 25 times. I was using a ComPat touch Screen laptop ...

Custom events with a struct that has had its pin split will throw an error when adding variables to the blueprint

UE - Gameplay - Blueprint - Aug 26, 2016

Custom events with a struct that has had its pin split will throw an error when adding variables to the blueprint. The Struct appears to throw an error when making changes that are seemingly unrelat ...

Ctrl+z while playing in the blueprint editor will undo history

UE - Gameplay - Blueprint - Jun 9, 2015

When pressing play within the blueprint editor, if you use control & z, it'll revert your changes you've made to the blueprint. Which could cause people to lose their progress in their blueprint tem ...

editor crashes when variable inside of a struct is set to a class type then the object is moved to a new folder

UE - Gameplay - Blueprint - Mar 17, 2015

If a struct has a variable set to a class type, then the object of that class type is moved to a new folder in the editor, the struct will replace the class type with "class", which causes the edito ...