Hey Nap
I did try the delete Hot Spare and get the Buzzer going off that doesnt seem to want to stop.
Reset everything and try again
It seems that a SATA plug on one of the Multi's labeled P1 is the problem.
If I unplug that one and move it around to different SSD's the Hot Spare issue follows that cable labeled P1.
Tried only using 1 Multi and 4 SSD's:
1 Multi and 4 SSD's plugged in and all is fine.
2nd Multi and 4 SSD's and Hot Spare issue.