Crypomator doesn't Remember my Vaults

When I restart my computer, Crypomator forgets the vaults I’ve opened before. The list of vaults is empty. However, I can still open vaults via “Add Vault” > “Open Existing Vault”.

I’m using the portable (PortApps) edition of Crypomator, and I’m running it off of my SD card rather than my hard disk. My OS is Windows 11 Professional edition.