I would like to report two possible issues with Clone feature of effects editor
For testing purpose, I have created new effect with default template. Only additional step - I've set another material (VFX_SnowLandingDust but can be any) [top picture]
Then clicked RMB on this effect and selected Clone, set new name [result on bottom picture]
1. Layout of cloned effect was not copied. When I open edition XML I see that nodes exists but does not have any parameters (appear since SU6)
2. Material set to random GUID and appear as black rectangle in the sim (appear since SU5 or even earlier)
Bonus bug: if both node field is empty and contact point set to NONE, game crash when I press SPAWN