I set up my Vault folder about a couple of months ago. I used it to back up about 100 - 200 GB of data from my old computer. Today I log into Vault and it had me set up a PIN again (?) and when I accessed the Vault the 100 - 200 GB of backup data I had uploaded is gone. The data was definitely there the last time I checked; and I explicitly remember uploading it because it took a couple of hours.
What happened to all of my data? There was no notification that it was deleted. And why did I have to set up a PIN again?