Aborted recipe

For the past year or so, I have been roasting exclusively in “recipe” mode, with no issues whatsoever. Just now, after loading my standard 454g. recipe to start, I reached the pre-heat temperature, and when the Bullet announced “charge”, I removed the bean chute plug, and placed the funnel in its stead. But before I could even position it correctly, the Bullet announced “roasting has started”! Not a single bean had been added yet.

I quickly charged the roaster, but I knew I was in trouble, when the face plate said F2 and P2, instead of my usual P0 “soak”. Sure enough, the recipe had disappeared from the roast profile graph. I was on my own! Not a bad thing, but it was a bit disconcerting. Has anyone ever experienced this before?