Heh! You’re going to love this.
Twelve servers later, I check my source document.
I copy and paste my commands into the CLI … I had accidentally highlighted the CR+LF after the last command. So it’s piped into the CLI to appear, invisibly mind you, after the prompt. But it doesn’t actually enter itself at that prompt. So that when I enter “y” then <enter>, it has actually received CR+LF Y <enter> and fails out.
Doh!