Accessing droplet via console denied using correct credentials

I am very new to DO. I have an Ubuntu 16.04.1 LTS droplet which has a sudo user and root login disabled. The droplet was created with an SSH key with a password and the key works perfectly via puTTY with my non-root user and root cannot log in. So far so good…

Initially I used sudo passwd to set root user pass since it was not supplied during droplet creation. After failing to be able to use that pass (pasted via shift+Insert) into the DO console I used the DO Reset root Password process. This pass is also not accepted and attempts to login with my non-root ssh user with a pasted password have also failed. I have not attempted to type in the 100+ char non-root pass.

So I do not know if pasting a password in the DO console simply does not work or if I have some other issue? I have no real need of DO console at present with easy SSH access but if for some reason I did need it I’d like to have it working.