Unreal Engine Issues

Editor crash when modifying Skeletal Animation Section of an unsaved additive animation

Unsaved animations can cause the editor to crash if they are in a sequence, if the sequence evaluates them after an edit.  ...

Enable HDR Display Output on Game User Settings Crash

Crash when attempting to enable HDR via UserSettings This crash will also occur when project is fullscreen. User's Environment: "I have an Nvidia GTX 1080 Ti and have two monitors attached: 1. ...

Copy-pasting an actor property that is a set of strings adds extra quotes and escapes

Copy-pasting an actor property that is a set of strings adds extra quotes and escapes. The licensee has reported: The problem doesn't happen for example for properties of types set of integers, nor ...

Float Curve that is set as a local variable in an actor's function is garbage collected when in Standalone, causing a crash

If a Curve Float local variable is created for a function, it will be garbage collected when garbage collection occurs. This causes the process to crash due to an null pointer error whenever it is r ...

Memory Leak caused by auto save files

Remapping morph targets will crash if you have a cloth section

By calling FLODUtilities::SimplifySkeletalMeshLOD on a mesh with cloth sections that is set to remap morph targets, a crash occurs. This seems to be due to the indexing of sections with/without incl ...

Crash when opening Blueprint after editing ChildActorComponent base class

Defining a ChildActorComponent in code, then setting the component to a blueprint derived from another code class causes the editor to crash when opening the parent blueprint if any changes are made ...

Imported heightmaps with 2x2 sections crash editor

Importing a heightmap with 2x2 segments seems to cause the editor to crash in 3 different instances: 1. Importing the same 2x2 segment landscape a second time after deleting the first instance 2. ...

Changing particle system template via Blueprints crashes Editor and packaged game

Setting a ParticleSystem component in a Blueprint to none/null with a "Set Template" node causes the editor and the packaged project to crash. I have noticed this when migrating my game to 4.22, whi ...

First Person Example Project Crash when character movement component is cast in viewport.

Crash is caused by incorrect cast to display ActorComponent in viewport (gizmo used to move it should not be present) ...