Unreal Engine Issues

Setting Texture Object within Niagara fails to update texture

Based off of a saleforce ticket, it seems that reinitializing a niagara system with an updated texture, the texture does not update. The setup works correctly in 4.25, so marking as a regression. ...

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

[SM5] /Engine/Private/VolumetricCloud.usf(118,33-53): error X3018: invalid subscript 'VertexId' This is happening in VolumetricCloud.usf, but it seems that I can avoid the error by adding the follow ...

Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work

Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work ...

Particle Data Exports only work in the final simulation stage

Particle data will not be exported unless it is in the final simulation stage. ...

GPU System will kill existing particles if activate is called after it has be deactivated

Deactivating and then reactivating the same GPU system will cause existing particles to die. ...

Rotate about axis material node can cause Z-fighting in Niagara mesh particles

The rotate about axis material node appears to cause z-fighting in mesh particles if they are scaled in the simulation. ...

Can't use keyboard to navigate the add emitter menu in the system overview

Selection is weird in the add module menu when filtering

Niagara Emitter editor forgets Timeline playback ranges

This seems to only affect an emitter and not a system asset. ...

Volumetric Material not compiling on Niagara Mesh Renderer

The Volumetric Shader seems broken when used along the Niagara Mesh Renderer. Reported and tested in version 4.25.3(CL 13942748). Tested with same result in version 4.24.3(CL 11590370). ...