Citrix release on February 22, 2021 a new release of ADM.
After testing this release, I discovered that there is a bug on the Python script to create new disk.
In fact, with this release, if you had another disk, the first thing to do is to make the disk usable with the script DiskPartitionTool.py script.
Citrix is aware of the issue and will correct this in the next release.
Be careful if you upgrade your ADM to 13.0-76.29 as you will not be able to run /mps/DiskPartitionTool.py to resize your disk.
Thanks