I'm trying to figure out the best way to organize my layout. I sequence 5 houses on my cul-de-sac and like to group things. My inclination was to create top level groups with sub groups, avoiding circular references of course. When I did this, everything looked correct in the preview but I do not have my display set up to check. I selected 'tools' - 'check sequence' and I get the following, "Model Groups containing other model groups or non existent models
ERR: Model group 'My_Yard' contains another model group 'Candy_Canes'. Nested model groups are not supported at this time."
Everything appears correct in the preview though. What are the ramifications of nesting groups?