Unreal Engine Issues
Unreal Engine Issues
External Actors can hold stale references to Blueprint classes as edited instance properties
UE - World Creation - Worldbuilding Tools - Nov 14, 2024When a component is removed from a class that exists as an instance with external actors enabled, a deleted BP component on an actor will remain referenced by the instance. Disabling External Actor ...
The "Make Static Mesh" feature for skeletal meshes does not account for disabled mesh sections.
UE - Anim - Rigging - Skeletal Editor - Dec 11, 2024The licensee was not able to make static meshes with the correctly disabled sections from a skeletal mesh in the current implementation of the "Make Static Mesh" button in the editor. They have prov ...
Nanite mesh not culled when owner is editor only actor in gameview
UE - Graphics Features - Nanite - Mar 29, 2024Nanite mesh is not culled because "DrawInGame" value in the primitive uniform buffer is always 1. Can be fixed with below modification:// in FPrimitiveSceneProxy::FPrimitiveSceneProxy DrawInGa ...
Widget Blueprints Fail to Compile When Copying Collapsed Graphs into Functions
UE - Gameplay - Blueprint - Jun 28, 2022Collapsed blueprint nodes that are copied and pasted into a function graph of a Widget will cause a fatal error when the blueprint compiles, as seen in the callstack, and will provide the message: " ...
Exiting PIE with dedicated server checked causes editor to crash on Linux
UE - Platform - Linux - Oct 25, 2016Checking the box for Dedicated Server in the Play dropdown menu causes the editor to crash when exiting PIE. This does not occur in 4.13 or 4.14 on Windows. ...
Crash when searching for a string with the same name as the collection
UE - Editor - Content Pipeline - Content Browser - Feb 28, 2025The editor crashes when creating a local collection of the same name by typing certain characters in the search box of the content browser. This does not reproduce in UE5.4 and is a regression in UE ...
Crash When Adding Actor Component Tagged 'Within' to a Game Mode Blueprint
UE - Gameplay - Components - Apr 25, 2016Crash occurs when attempting to add an actor component c++ class to a game mode blueprint if the actor component is tagged with the Within="GameMode". Found in 4.11.2 binary, reproduced in 4.10.4 ...
Performing a hot reload on a project that contains an FStringAssetReference will crash the Editor.
UE - Foundation - Core - Mar 10, 2015Performing a hot reload on a project that contains an FStringAssetReference inside a struct results in a crash. This was reported to work fine in 4.6.1, but I was unable to verify that is the case. ...
Crash on clicking Column Header in visRT window
Tools - Apr 22, 2015The Engine will crash when you run the visRT command in Editor and click on an item in the visRT window and the click on a column header. also Reproduced in Main Promotable-CL-2513846 [Link Remove ...
Opening widget blueprint causes editor to crash
UE - Editor - UI Systems - Oct 17, 2014Branch Build Label UE4-Main Promoted-CL- 2323471 DESCRIPTION: User crashes when opening a Widget blueprint. Unable to reproduce internally. *EDIT* Repro provided by User ...