this is my first of hopefully many comments and discussions. I have no education in prgramming so many many thanks to all of you who are able to know what "what if else means"

Here is my problem. I built up an octocopter with a multiwii board (MWC MEGA beta). I uploaded the 2.0 Version and selected Octoflat p becaus it is an plus octo with one arm in front. After calibration I tested roll and pitch and it was wrong/switched. The arrow on the board for flight direction shows correctly to the front arm but the pitch/roll is wrong.
Then I tried the Version 1.9 and with this it works. Pitch and Roll is correct now. Is this a bug?
In The config too it is named octox.
Bets wishes
Michael