One or more RAID volumes are degraded. PR4100 didn't rebuilt

I have a RAID 5 with 3 10TB disks, disk 2 died, I substituted it with a new one. But volume still degraded.
All disks are healthy.

How to fix this?

Hi @pichol,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: