Incus 7.4 can not copy vm to other pool

Hallo Team,

We have an issue when we will copy vm to other pool, we get error

Create instance from copy: Create instance volume from copy failed: Failed to run: qemu-nbd --connect=/dev/nbd0 --discard=unmap --detect-zeroes=unmap --format=qcow2 /dev/dm-27: exit status 1 (qemu-nbd: Failed to set NBD socket)
fs_progress: "Staging_myvm: 328B (62B/s)"

We used 7.4 new version.

Best Regards
Dwi

What’s the storage driver on the source and target storage pools?

Can you also confirm that /dev/nbd0 exists on your system?

NBD existed in all computes

root@incus-01:/home/xxxxx# ls /dev/nbd0
/dev/nbd0
root@incus-01:/home/xxxxxx# file /dev/nbd0
/dev/nbd0: block special (43/0)

Storage Driver Source : LVM Cluster
Storage Driver Destination : LVM Cluster

 incus storage list
┌────────────────────────┬────────────┬─────────────┬─────────┬─────────┐
│          NAME          │   DRIVER   │ DESCRIPTION │ USED BY │  STATE  │
├────────────────────────┼────────────┼─────────────┼─────────┼─────────┤
│ pool-iso-and-templates │ dir        │             │ 2       │ CREATED │
├────────────────────────┼────────────┼─────────────┼─────────┼─────────┤
│ pool-qnap-hdd-01       │ lvmcluster │             │ 26      │ CREATED │
├────────────────────────┼────────────┼─────────────┼─────────┼─────────┤
│ pool-qnap-ssd-01       │ lvmcluster │             │ 10      │ CREATED │
└────────────────────────┴────────────┴─────────────┴─────────┴─────────┘

Fom pool-qnap-ssd-01 to pool-qnap-hdd-01