Unreal Engine Issues

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

Crash occur when using AddSpawnableFromClass with BlueprintGeneratedClass specified

BlueprintGeneratedClass is not based UBleupint. So the following code is failed. bool UActorFactoryBlueprint::PreSpawnActor( UObject* Asset, FTransform& InOutLocation) { UBlueprint* Blueprint = ...

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD()

Packaging with plugins GearVR and GoogleVR together cause build failed with multiple definitions of GetHMD(). Log attached for build error and error portion plugged into the callstack box. ...

AttachRootComponentToActor being used over a network can cause an Ensure (previously an Assertion) to be triggered.

This is a continuation of [Link Removed]. The previous ticket changed an Assertion to an Ensure in order to stop a crash from occurring, and stated that a more complete fix would be coming in 4.10. ...

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 ...

Deleting transient actor marks level dirty

The licensee has noticed that the deletion of a transient actor still marks the scene as dirty and asks it to be saved. Checking the source it was noted that the transient flag is not verified on de ...

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) ...