complex rules and large input meshes (also multipolygon) can easily trip over the default shape tree width/depth limits.
these limits can be configured with attributes:
https://esri.github.io/esri-cityengine-sdk/html/classprt_1_1_initial_shape_builder.html#a54112771964d72bdad2ce9d6a28fe20a
basically boils down to verify that attribute names are allowed to have forward slash characters
complex rules and large input meshes (also multipolygon) can easily trip over the default shape tree width/depth limits.
these limits can be configured with attributes:
https://esri.github.io/esri-cityengine-sdk/html/classprt_1_1_initial_shape_builder.html#a54112771964d72bdad2ce9d6a28fe20a
basically boils down to verify that attribute names are allowed to have forward slash characters