The StarShine sink requires an Ancient Manipulator to craft. The rest of the set requires a sawmill/workbench level crafting item. Is it misclassified into the same bucket as the star pillar furniture, "stardust"?
Also, sandstone desk has ingredients "sandstone desk" and "sandstone worktable". (yes, it requires itself, instead of the bookshelf it should require.)
PS: If there is anything you want me to do different about how I report bugs and stuff, please let me know. I want to make these as easy and useful for you to fix as possible.