I can't seem to have shared template

Hello all,

I am fairly new to Proxmox so forgive me if I am on a completely wrong path.

I have three nodes into a cluster and a shared NFS storage (truenas).

I have made a template VM on host1 and have successfully moved the disk on the NFS share.

But, when I want to clone the template with as target host2 or host3, it tell me they are not valid target.

What am I missing ?

Thank for your help.