Multiplayer server resetting every time someone logs off

I operate a small private server that until now has gotten regular usage. I recently cleared the world maps and started from scratch and now every time someone logs out of the world all teleporter bookmarks, outpost, missions, all reset. This happens every time, and I have yet to see anyone who's experienced this as often as I have.

I rent server space for this from multiplay, in case that makes a difference.

Any advice is appreciated.