[SOLVED] Backup of restored VMs fails

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Hello,

i´m experiencing some trouble with my fresh Proxmox Installation.
Short story:
Backupped all the VMs from the Host, reinstalled the Host with the latest 6.3 Version, restored all the VMs, everything was working fine and straight forward.
Now i checked my scheduled backups and they are not working.
INFO: starting new backup job: vzdump 113 --mode snapshot --compress zstd --node XXX-pve-1 --remove 0 --storage VZDumpBackup1 INFO: Starting Backup of VM 113 (qemu) INFO: Backup started at 2021-03-30 08:58:36 INFO: status = running INFO: VM Name: XXX-VM INFO: include disk 'scsi0' 'local-lvm:vm-113-disk-0' 150G WARNING: Device /dev/dm-6 not initialized in udev database even after waiting 10000000 microseconds. WARNING: Device /dev/dm-8 not initialized in udev database even after waiting 10000000 microseconds. ERROR: Backup of VM 113 failed - no such volume 'local-lvm:vm-113-disk-0' INFO: Failed at 2021-03-30 08:59:02 INFO: Backup job finished with errors TASK ERROR: job errors

What can i do here?

 

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And what i´ve just noticed, i can´t access the local-lvm from the webgui

Seems like there is something wrong.

 

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After executing the 'udevadm trigger' command it seems to work now.
Any chance that somebody could explain to me why this has happened and how often i´ll have to execute the command (every reboot i guess?)?