I had some signs set up and a chest full of stuff @ build gate 7. I look there now and it seems to have been reset, or maybe just the entrance reset. At any rate, did I just lose all my stuff when this happened? or? I noticed there is a lost item recovery room, is this place for these items or not? I checked there to no avail.
The build gates constantly change their locations. Saving the coords may have helped in reclaiming stuff.