The problem I am having with your statements is that you are being vague about where you believe there is manipulation.
When we are talking about "rigging a drawing", that specifically refers to altering the lottery drawing machine -- or the balls that get drawn from it -- in order to make certain numbers come out.
Now, if you are saying that Texas is controlling the outcome, that is the only way I know to do that, because if the drawing in NOT rigged -- it is entirely random -- then ANY COMBINATION has an equal chance of winning. How the heck would the Texas Lottery know which combinations to "avoid".
The combination 1-2-3-4-5-6 has exactly the same chance of coming out as 6-13-22-35-39-46.
When you say "the game was programmed not to produce a winner", what exactly are you referring to? The Mega Millions drawing (which is NOT run by the Texas Lottery, BTW) is a ball drawing, so it is not programmed in any sense.
The tickets for Mega Millions are sold by 12 different states, each with their own independent back-office system that collects the ticket numbers generated by hundreds of thousands of independent lottery terminals made by a few different manufacturers (with incompattible program code).
The conspiracy to ensure that certain Mega Millions combinations are not being sold among all of those lottery terminals would have to involve corruption and collusion at 12 different state lotteries, and be a monumental technical feat involving the simultaneous programming of hundreds of thousands of lottery terminals, bypassing 12 different audit systems (one for each state) to download new instructions to all of those terminals.
In the twelve years that the game has been around (1,202 drawings so far), all of that cloak and dagger stuff would have to remain secret for the manipulation to continue week after week.
And it's all being done for what? So that certain combinations are not being sold? So that the lottery control control WHERE certain combinations are being sold?
Again, how does that help the lottery manipulate the drawings at all? With a random drawing, it doesn't matter what combination is sold where, because every single combination -- even the ones that do not fit into historical patterns -- have a precisely equal chance of being drawn.
If you're saying that the drawings themselves are NOT random then that's a different story, and can be debated. I would be genuinely interested in hearing how they would manipulate the Mega Millions drawing (rubber balls, gravity drawing).