There's nothing really mystifying about them at all... The server only ever sees your basic character data + your 30 item inventory. It definitely cannot save your banked items.mistamontiel wrote:Save backups from ingame quite mystifying? Supposedly it's partial only and your storeroom can't be saved? But I've seen UGB /load and gets everything no losses..
That said, it also does not overwrite your banked items, so you won't lose anything that is in your storeroom when you run the command to restore your data. However, if you are starting fresh (i.e, if you actually had your VMU save file get corrupted), then there is no way for the server to recover them for you.
Basically, the server-side saving of character data is useful for helping to partially recover from catastrophic failures. If you have some other way of backing up your save file (like with VMU Tool), then you should use that regularly to make sure you don't lose your banked items. However, the server-side thing is a nice fallback in case something does happen, since it backs up every time you enter a team.