Had the same issue on my setup looks like Webmin doesn’t always pick up exFAT mounts from fstab for the dashboard widget. Manual mount works because it’s more “visible” to Webmin in real time. Not sure if it’s a bug, but maybe try adding the disk to Webmin’s “Filesystem Configuration” to see if that helps?
If I don’t type"auto,umask=000,users,rw", it shows right. But qbittorrent could not write in disk.
If I type these parameters, qbit could write. But status not display on dashboard.
This two way both could show right with “df -l” or “fdisk -l”