Against probably better players too
I honestly thought it was a good 2NT hand
Let's put it down to minor simulation error (eg on trick 1 it plays 9D rather than 6 for some reason, then does something else (discarding a small club) around trick 7 or 8 - can't be bothered analysing it - well beyond my Bridge analytical level) - I imagine smerriman is a bit bored explaining stuff too
Back to analysing my equally rare 0% scores and trying to improve