Unreal Engine Issues

Crashes when changing parameters by changing the collection of the NiagaraParameterCollectionInstance

Particle editor realtime mode disabled when play in editor

Particle editor realtime mode disabled when play in editor, while it's normal in UE4.24 ...

Spawning a Spawnables to a sub-level on the sequencer will spawn to Persistent Level in the case of Editor

This feature works fine on Runtime and is spawned to Sublevel. And, once we save the Level, it will be spawned actor to a sublevel even on the Editor. ...

[Feature Request] Add a "Move Function Declaration to Parent" option for blueprint added functions

Users requested the ability to move only the function declaration to a base class from blueprints instead all of the nodes inside the function.  From the user:  "Essentially, 95% of the time wha ...

ListView crashes when GlobalInvalidation is enabled.

Reverting to the fix in [Link Removed] (CL#17788567) will avoid the crash. ...

Reimporting FBX imported with Import Into Level does not maintain the changed material.

If you import by drag & drop without Import Into Level, the material will be maintained even if you change it. This is because FFbxImporter::ReimportStaticMesh() sets ImportOptions->bImportMaterial ...

RayTracing Final Gather is not working in UE 5.1

Further Comments: Customer is using the deprecated ray traced mode. ...

Crash when exiting editor before EditorUtilityTask completes

If exiting the editor before the EditorUtilityTask completes, it crashes. It will not crash if canceling the UtilityTask and then exit the editor. The following implementation does not allow destruc ...

USplineMeshComponent::CalcBounds may return invalid value

USplineMeshComponent::CalcBounds function should be returning an FBoxSphereBounds type, but in the implementation it instead outputs an FBox. This may result in the returning of invalid results, esp ...

Performance slowdown when ray tracing is disabled due to SetResidencyPriority

When a game is compiled with ray tracing disabled (D3D12_RHI_RAYTRACING=0) and the GPU the game is running on becomes low on VRAM, frame time is negatively impacted and doesn't recover. The D3D12_RH ...