I noticed this both before and after recent updates to the Hotel Booking Plugin. I am currently unable to generate REST API keys. The process initializes and shows the keys and QR code, but it’s not saving/storing the keys. This is supported by the fact that I cannot view the keys after completing the process or use the keys/QR code to access bookings via the Hotel Booking Mobile App (iOS) in my case. (Just indicates “No keys found.”)