I have been using a pair of Pegasus2 R6 systems with my Late 2019 Mac Pro since December when I purchased and set up the Mac Pro. Until recently, when I selected Apple>Sleep, the Mac Pro went to sleep and put the Pegasus2 systems to sleep as well. A few days ago I noticed that when I slected Apple>Sleep, my Pro XDR display turned off, but my Pegasus2 systems and my other external hard drives did not go into sleep mode. I established that the failure to go into sleep mode was due to the Pegasus2 systems by shutting down the computer, disconnected them, rebooting, waiting 30-40 seconds and selecting Apple>Sleep. After about 30 seconds the Mac Pro went to sleep and put all of my external hard drives to sleep normally. Does anhyone have a solution to this problem as I do not like to leave my Pegasus 2 systems running 24/7?