Official Keen Servers Removing Powered Grids

I owned a 12,230 PCU, powered, large grid ship on NA2 and logged in about 48 hours ago. I come back today and the grid has been removed. It was parked at my base; there is no evidence of a raid of any kind. Myself and a friend had combined pcu to make it, and he had not logged in for about 6 days. However, other grids he and I built are still sitting at the base. There are no blocks from the ship in the Info menu. The ship in question was powered for a year. We were both logged off in cryo pods. My ingame name was Flight1700. My faction member's name is phildog.

This is a game-breaking bug that has plagued this game since its launch. We need better documentation of the GRID CLEANER, not to mention the game in general.

If the infinitesimally small possibility that someone FOUND this free floating base DID occur (and that they ONLY stole one ship without hacking the base's obviously visible large cargo containers), I would like the game to give me a notification when I log back in that says "A block you own has been hacked or destroyed". Delay the notification by an hour or whatever for raiders.