Thanks for the heads up on the diags. It makes sense.
I just finished my rebuild and everything seems to be working.
For those who need to know how I fixed things:
Stopped the array.
Unassigned the disks that are disabled.
Start the array in maintenance mode.
Stop again.
Reassign same disks to the same slots they had before.
Start again.
Rebuild and wait.
Keep in mind, I believe these drives to be in good working order. If I had smart errors, I would have replaced and rebuild.