For anyone finding this (old) topic - the partial solution is to ensure "Print Backgrounds" is ticked in your print dialogue. The extension does mention this somewhere in it's docs. I had the same pain.I say partial because I'm still getting every se...

The circular reference thing remains a total product-killer for me. Not asking much, just some basic BOM (Bill of Materials) functionality - same as you’re seeking by the sound of it. Such a shame