I think I found a bug in importing the PI-Hole configuration with Teleporter. I have a list of 30 devices in the Static DHCP leases configuration tab, the export happens correctly (dnsmasq.d\04-pihole-static-dhcp.conf contains them all) but when I import them to a new instance of Pi-Hole only 10 are imported. Obviously I solved it manually with
sudo nano /etc/dnsmasq.d/04-pihole-static-dhcp.conf
sudo service pihole-FTL reload
but I wanted to report it. Thanks