Beware: your vault can randomly be emptied

I play on Xbox One. I had around 10 legendary items in my vault when I got offline last night. When I checked my vault today, it was completely empty. I tried re-logging, I tried playing with a different host, nothing worked. My items are GONE. I even lost my pre-order pack legendary items that I payed real-life money for. I love collecting legendary weapons so I am VERY frustrated that a bug of this caliber has gotten through to launch. I can deal with the small bugs because I love borderlands, but this is ridiculous. I am now skeptical to put anything in the vault until this is fixed! DON’T PUT ANYTHING YOU VALUE IN THE VAULT.

The same happened to me is there anything we can do