I'm hoping that someone could explain to me the logic behind print density limitations again. I just got an email explaining that a sale was cancelled because the item could not be printed, with the following: I've seen the lengthy discussions about how the print density impacts price breaks on WSF, and all the confusion caused by that. I've not seen anything explaining why ElastoPlastic has a minimum density. And I don't see why this print should be rejected, especially if it would pass this requirement if I added a useless brick of "waste" to the model to bump the density. None of this makes any sense. It also is frustrating that the rejection occurs two weeks after the sale is made, when a volume check should be easy enough to run immediately upon sale. And it is ADDITIONALLY frustrating that I have no means to reach out to my customer and apologize or explain to them what the issue was. Why Shapeways continues to block seller/customer interaction is beyond me, and the main reason why I can't take this "marketplace" seriously.