Unreal Engine Issues
Unreal Engine Issues
Regression of CanJump Function not being accessible in blueprints in 4.8
UE - Gameplay - Jun 26, 2015When trying to override the CanJump function of a character blueprint, the function does not show up in the MyBlueprint panel's function section. Hovering over the Function bar shows the "Override" ...
Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client
UE - Networking - May 19, 2015Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client. Reproduced in 4.7.6, 4.8 Preview 3, and Main (//depot/UE4/Promotable- ...
Most GameMode classes cannot be set in Blueprints
UE - Gameplay - Jun 14, 2015Most GameMode classes cannot be set in Blueprints. Only Set Default Pawn Class and Set HUD Class have Setters available in Blueprints (the Getters are all still available). Reproduced in 4.8.0 and ...
Editor crashes when actors using child actor component are loaded while Static mesh actor filter is enabled in the outliner
UE - Editor - Dec 5, 2022Reproduced 3/3 times. Unclear whether this is a regression as filter GUI is new in 5.1 for Outliner. ...
BP Component is not destructible if the Object Type is set during runtime
UE - Simulation - Physics - Destruction - Mar 16, 2015BP Component is not destructible if the Object Type is set during runtime. If the Object Type is set manually before PIE is started, the BP component will destroy correctly. ...
Shadows are cast by meshes that have "Self Shadow Only" enabled while "Ray Tracing" is enabled with DX12
UE - Graphics Features - Lumen - Nov 6, 2019Meshes that have "Self Shadow Only" enabled are still casting shadows if ray tracing is enabled with DX12. Found in 4.23.1 CL#9631420 Reproduced in 4.22.3 CL#7053642, 4.24 CL#10053396, 4.25 Main CL ...
GAS: Ability that destroys owning actor on activate causes crashes due to ABILITYLIST_SCOPE_LOCK
UE - Gameplay - Gameplay Ability System - Oct 31, 2023A GameplayAbility that destroys its owning actor inside ActivateAbility() causes a crash, because actor destruction will modify the ability list but ActivateAbility() is called within an ABILITYLIST ...
GameplayTag Query on Component Instance resets when reloading level
UE - Gameplay - Components - Jun 14, 2018GameplayTagQuery variables - when inside of a component, are not saved. User notes: "Note that this does not occur if the ActorComponent is added in code in a native actor and that the actor at S ...
TSR and TAA history accumulation gets reset when taking viewport screenshots or when clicking outside the tree in the outliner
UE - Graphics Features - May 30, 2025TSR (and TAA) history accumulation gets reset when taking viewport screenshots or when clicking on an empty area in the outliner (when a tree item is selected). This can cause an undesirable issue w ...
Applying Reverb does not work in Audio Volume
UE - Audio - Oct 29, 2019In current and future versions of the engine, the reverb does not work as intended in the Audio Volume Tested in 4.22.3 (CL - 7043647), 4.23.1 (CL - 9631420), 4.24 (CL - 9846303), 4.25 (CL - 98464 ...