So from a fresh install 21.02 , from within the gui i did / fetch update list then install : Qemu-ga for the guest addition package, as running owrt x86-64 vm. Even try with esxi, but get same issues as in proxmox. The bug might be a package missing or an extra one that is needed ...? as it just fail with those error .
vm was reboot/stop, restart.. still get the error.
Thanks for hints..