No rollout of changes is ever without growing pains. You're a small team, you can't be expected to get everything completely right every time. Patience and cooperation from your customers is what fixes these issues. Microsoft get it wrong all the time and they've got some of the highest paid and largest software teams.

You both responded rapidly and found a work around whilst you look into the issue. And done so within the last hour or so? Microsoft could never hit those kinds of resolution timeframes.