Rpi Box Nextcloud Box (now with Ubuntu Appliance) SSH key problem

I am moving to AL, and am having trouble ssh-ing into my RPi Nextcloud box which I have reinstalled using the Ubuntu Appliance

I have done steps 3 & 4 in that link above to add leigh@archlabs to my SSH keys on my Ubuntu1 account but when I try to ssh into my RPi it still asks me for a password

It still works in Manjaro with the SSH key I originally set up for this - but I want to move to AL for my Nextcloud-client syncs

Can anyone help me out?

I realise this is perhaps not an AL question, but thought I’d try my luck :smiley: