Niagara GPU Emitter Flickering at Certain Angles When the System Origin is Occluded

UE - Niagara - Mar 25, 2019

Niagara GPU Particle Flickering at Certain Angles When the System Origin is Occluded. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 Preview 6 CL# 5439949, and 4.23 CL# 5533539 ...

Niagara Mesh Renderer Incorrectly Rendering Mesh at Distances When Using Two Sided Material

UE - Niagara - Mar 25, 2019

Niagara Mesh Renderer Incorrectly Rendering Mesh at Distances When Using Two Sided Material.  Working as expected in 4.20 CL# 4369336 and 4.21 CL# 4753647 Found in 4.22 Preview 6 CL# 5439949 and 4 ...

Pivot Offset Module does not respect on/off toggle

UE - Niagara - Mar 22, 2019

Toggling the Pivot Offset module in a Cascade Particle System has no effect on the particle system's position. Tested in 4.20.3 (CL - 4369336), 4.21.2 (CL - 4753647), 4.22 (CL - 5439949), 4.23 (C ...

Niagara emitter shrinks when changing the camera

UE - Niagara - Mar 20, 2019

Moving the camera to be perpendicular to the Niagara Actor causes a change in its size. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5439949), 4.23 (CL - 5470758) ...

Niagara System Doesn't Update Mesh Renderer If Static Mesh is Changed in the Emitter

UE - Niagara - Mar 20, 2019

The Niagara System doesn't update the mesh renderer If the Static Mesh is changed to an Imported Mesh in the source emitter Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL#  5470758 ...

Setting spline in Niagara Override Parameters corrupts system after closing level

UE - Niagara - Mar 19, 2019

The USplineComponent appears to be corrupted. It will pass the null check, but operations done on the data cause the engine to crash. (See the linked UDN for more details) ...

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open

UE - Niagara - Mar 7, 2019

Project configured to spawn Niagara system via Character blueprint in a Code project fails to Cook, then crashes project on open Discovered when verifying [Link Removed] (also similar to [Link Remo ...

Crash When Setting a Bool in a Niagara Parameter Collection via Blueprint

UE - Niagara - Feb 26, 2019

The Editor will crash when setting a bool in a Niagara Parameter Collection via Blueprint. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5159901, 4.23 CL# 5194133 ...

Niagara Grid Location Module spawns particles off center

UE - Niagara - Feb 5, 2019

the GridLocation module spawns particles off center. ...

Data Tables with 'ParticleSysParam' structs cause crash

UE - Niagara - Feb 4, 2019

Data Tables with 'Particle Sys Param' structs in them as variables will crash when opened. ...