So, I have been able to recover the data without using the WD programs. It is time consuming (computer time, not my time), but it works.
I purchased Stellar Data Recovery Technician ($200). After trying to, unsuccessfully, recover the data as a RAID5 configuration, I just treated each disk in the Raid Array as a separate disk. Then I used to option to search for “lost partitions”. For a 3TB drive, that takes anywhere from 1-30 hours, depending on how much data is on the disk. Just a note, ideally use a PC or Laptop that you can dedicated to this task. For a 12TB Raid 5 (4 disks), I figure it going to take about 1-2 weeks to recover all of the data files.
If no partition showed up (as it did on one drive), then you do a “Deep Scan” and find all partitions that have been deleted (if you do this, choose the one with the largest number (mine had 10 deleted partitions), as that will be the latest one). Once all partitions are listed you can select one (first seems to be the OS and second seems to be data files) to see what recoverable files are there. Again, this will take some time depending on how large the partition is and how many files are there. Just let the it run (as much as 24 hours, sometimes more) until a file list shows up. Then, select FILE TYPE view, and see what is there. You can select which file types you want to recover and then recover them to a different disk, NOT the one you are scanning. Again, this takes time to transfer the files, especially over a USB connection for both the RAID disks and the recovery disk going the the laptop.
Time consuming, in terms of computing time, but it is getting all of my data back. If the photos and videos don’t work after recovery, the Stellar software has a “repair” function on the main menu that will fix that.
Hope this helps some else.