Mac Pro 5,1 running Mojave I have read about this issue for awhile I think it may be some kind of firmware issue with larger capacity drives. My 8TB Western Digital hard drive in Bay 4 only shows up if the computer is shut down and started up, it does not show up on restarts. WDC WD80EZAZ-11TDBA0. I have an 8TB Seagate in Bay 3 that works fine. Have there been any fixes for this issue?