Cool, at least there is a submit button now. This seems better than earlier. Also, it would be more intuitive if you can write,

Set a 6 Digit Pin (this PIN will be valid for only this session on this device)

and then once its set

Enter your 6 Digit Pin

I learnt that the hard way and trying to backup the key that I set on my password manager and wondering why it's not working on my desktop client.