Problem adding physical SATA disk as RDM in ESXi 6.7

I followed the instructions in this guide to add the disk to my Windows 2016 server guest VM.

How to passthrough SATA drives directly on VMWare ESXI 6.5 as RDMs · GitHub

So, the drive appears and it recognizes the size in Windows. However, the problem is that it shows as a RAW partition in Windows although the drive has data in it. I don't recall if it is formatted as NTFS or exFAT, but the partition scheme is GPT. The drive is 4TB and has a single partition.

Any ideas?