Debug out the Node.DB

I have three nodes. one of them displays the Joined as the node number twice and not the App user name. Does the SPIFFS database get erased on each bootup? And is there a flag to set to debug could serial out the Node and user database to see if it has corrupted or has multiple duplicate entries? Also after a software revision the old format of database structure in SPIFFS may needs deleting?

Oh and P.S the latest software update has Stopped my TBeam0.7 GPS from acquiring a lock. The symptoms are the red led flashes once or twice and then stops. Then after a long while it may flash once or twice again. The GPS had no problem acquiring a GPS before the update.