Hi,
I'm having the same issue with an Alpine VM after I restart the VM.
qemu-guest-agent is installed and enabled, and here are the outputs of
❯ qm config 103
boot: order=sata0;ide2;net0
cores: 1
cpu: x86-64-v2-AES
description: VM Alpine avec %0Avim, zsh, ohmyzsh, docker, git, curl, wget...