What the heck is wrong with your random letter generator? the last two weeks , either all vowels or no vowels?

It seems that since the sign in encryption change, the letter generator for each game is way way off. It used to be every 5 to 10 games I would get a really unbalanced game when it came to consonants and vowels. But now it's every single game...either feast or famine on the vowels. I just played a game where I went for 10 turns with no vowels. What is up with this? If it continues I am seriously looking into paying for Scrabble.