Noises During Shifting problems of the 2012 Ford F-250

I started the truck one morning to head to church put the truck in (d) drive headed out down the hwy pulled up to a stop sign on the way when traffic cleared I pressed the accelerator and the engine revived up real high but the truck didn't move and about the time I started to let off, the transmission clunked and took off and shifted weird between 1st and 2nd. The truck has responded two other times in the very same way once going about 40mph it reacted like the truck shifted in neutral. Ford dealer replaced the front pump in transmission, it still shifts weird and makes a terrible whining noise. Two or three times under acceleration to pass another vehicle the trans down shifted from 6th gear to 4th and would not shift back up, and then the opposite occurred pressed accelerator to floor running about 45mph to pass another vehicle and the trans never down shifted and I had to brake and fall back in behind that car before a head on occurred. There is definitely a safety issue with this truck, I have filed lemon law action and Ford engineer came and drove the truck and he said there was no unusual concerns with the truck. Someone please investigate this before someone dies.