PROMISE PEGASUS R4 FIRMWARE UPDATE PRO

Has anyone experienced this with a Pegasus (or a Pegasus2 or 3)? My Pegasus R4 is running firmware. The problem started about 2 weeks ago under Sierra 10.12.6 and continues to be an issue under High Sierra 10.13.1

PROMISE PEGASUS R4 FIRMWARE UPDATE PRO

I've actually had my Mac Pro on macOS 10.12.6 Sierra for the longest time, and only recently upgraded to 10.31.1 High Sierra about 3 days ago. This issue only started recently, which is weird, and I didn't note any major OS changes or software updates I may have made to cause this. Of course, this means that my Pegasus R4 mounted volume is improperly unmounted, but once I plug its Thunderbolt cable back into my Mac Pro, all is well.

I have to literally reach over to my Mac Pro and unplug my Pegasus R4's thunderbolt cable from it, and suddenly everything is responsive again (macOS desktop loads mouse and keyboard are responsive, etc.). Even though the displays wake up fine, for some reason, my Pegasus R4 (with 4 WD Green drives) doesn't seem to be responsive upon display wake-up, and actually causes my mouse cursor to become completely un-responsive, and my macOS desktop not to load either (all the displays light-up per say, but don't actually show the macOS desktop). I never set my Mac Pro itself to sleep, just only the displays. I currently have my connected displays set to sleep/turn off after about 1 hour of inactivity, and that happens just fine (with the usual click of a mouse/tap of the keyboard to wake up the displays). I have recently been experiencing what seems to be a wake-up issue with my Pegasus R4 anytime my Mac Pro sends my displays to sleep.

Promise pegasus r4 firmware update