Try taking off with flap 3 or 2 figures and setting flap 1.
It’ll ruin your day.
So it’s not because of flap1/2/3 takeoffs, its just the software was never upgraded to give you a warning.
The 330 had it from day dot. I’m pretty sure though with the step 2 upgrade it’s got an incorrect flap setting warning. I remember reading it somewhere obscure.