gearbox issue

[portokatsiki]

hey fellas
I ve got a fbt with the adaptive shift and recently I noticed the car sometimes (not always mainly cold) takes off in second gear When I manually move the lever into 1st while the car is taking off slowly it kicks back to 1st gear it also kicks back to 1st when I floor it while taking off slowly.The box got a full rebuild a year ago took it back to the transmission place they could not find any codes even though it showed the sympton they changed something or so they said ( cant remember what it was I ll find out ) my question is could it be a mechanical problem or something electronic anyone had something similar any help would be appreciated
cheers