Recommendations and tips
Exporting scene and pipeline
If you are experiencing issues, you can enable debug settings in the project settings to help you (and us) to figure out the underlying problem. You go to Project Settings->Plugins->Simplygon plugin and enable Debug checkbox and Export pipeline and scene. This will allow you to export the scene and pipeline in the different Simplygon tools. The export path is ProjectDir/Intermediate/Simplygon by default but can be set in the project settings under Debug Path.
Visualizing intermediate flattened textures
You can visualize the intermediate texture generated during material flattening process using the following console command. The textures are outputted to ProjectDir/Intermediate/MaterialBaking
MaterialBaking.SaveIntermediateTextures = 1
Mass assign LODRecipes
The simplygon_helpers.py script provides users with methods to assign a LODRecipe to all Static and Skeletal meshes in a folder.