Hey, @zippykat.
Technically ready-to-spawn blueprints are stored locally, so if it somehow fails to spawn, that means it never reached the server. So we don’t really have anything to restore. Normally, we would need a video of the loss to be able to help, since we don’t have logs of it.
But for now I can make a one-time exception. If you can take a screenshot of the blueprint recipe (the screenshot must be taken on our server, and not in singleplayer or so), and let me know what the ~5 most important items you lost were, I’ll see what I can do.
Also, in the future, please use server time in the ticket template. It’s CEST timezone or 10:16 as of this message. You can also write cb:time ingame to see it.