I installed ubuntu 22.04 and executed ‘lxd init’ with a dedicated zfs partition.
I saw that the link /var/snap/lxd/common/mntns exists, pointing to /proc/1140/root.
There is no folder /proc/1140 (/proc/1120 and /proc/1163 exist, but no 1140).
I restarted from scratch, but same result. Now /var/snap/lxd/common/mntns points to /proc/1186/root, but there is no /proc/1186.