Suddenly doesn't find (dynamic) disk

[admin]

Yes, I'm absolutely sure the disk is accessible at all times; it has never been inaccessible.

Today, it randomly created a backup successfully, yet Disk 3 still doesn't appear when I open the app to create or edit a task (no reboot occurred in between).

I don't know why it wants to access the third partition:

DISKPART> select disk 3

Disk 3 is now the selected disk.

DISKPART> list partition

  Partition ###  Type              Size    Offset
  -------------  ----------------  -------  -------
  Partition 1    Dynamic Data      2794 GB    17 KB
  Partition 2    Dynamic Reserved  1024 KB  2794 GB
  Partition 3    Reserved          127 MB  2794 GB

Can you send us the latest log file? Maybe we can find more clues. Thanks.

Try the version below::
https://www.easyuefi.com/backup-software...250629.exe