Unreal Engine Issues

Editor added components can fail to attach to a native root component

An actor instance's editor added components can fail to attach to the root component of the actor when changing the native root component's mobility from static to movable. The failure happens durin ...

Niagara Simulation Stage + DynamicMaterialParameters crash

deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...

Can not export sequencer from command line when use Movie Render Queue

iOS - Graphical distortion when packaging with Metal Desktop Renderer v2.1 turned on

Marking as a regression as this issue does not occur in 4.25.4 ...

[Niagara] Sampling static mesh location throws error

Linux - Crash when moving/turning the viewport camera in project that contains hair

I've attached the project log, crashreport, and crash info to this ticket. This issue only appears to be happening on Linux (On both Nvidia/AMD cards) and does not happen when the hair is disabled i ...

Light Propagation Volume does not work on Linux

It's easiest to see the change on the top of the table or back of the chairs when following the repro steps. I've attached screenshots of the Windows and Linux comparison with Intensity set to 20. ...

Niagara Parameter Collection doesn't work for Simulation Stage

Crash when opening the static mesh editor

We have been unable to get an internal repro so far, however we have had quite a few reports from the community reporting this issue. One user also stated this happens when migrating a project over ...

Replacing a UI widget element and then undoing it causes the Widget Blueprint's UI elements to be deleted on editor restart

When using the Replace With option and then undoing it, upon engine restart the Widget Blueprint's UI components are all removed from the Widget Blueprint. It seems the undo is crucial to the issue, ...