A couple of points here:
Tune your table saw. Use your operators manual and online videos to get your saw as perfectly aligned as possible, allow your CDO ( compulsive disorder, obsessive; that way the letters are in alphabetical order, As They Should Be ) to take over and get every adjustment perfect.
Do not use any type of "thin body" blade, they will warp under stress and cause misalignment of your pieces.
You are making your own molding, correct? What does your end grain look like, is the wood quarter sawn or not? Are you maintaining the same orientation on all the pieces as they are milled?
It appears that your molding is "weighted" to the rabbit side of the molding, this can cause the molding to warp slightly and pull the angle out of alignment, you may need to make a micro adjustment to compensate.
I worked at a production shop making frames and producing wall art for 26 years, a smaller shop for about a year, a smaller still shop for another year and have made my own moldings with a table saw and a molding head cutter. The points I have brought up are things I have had to deal with from sad personal experience.
At the shop where I worked for 26 years, at one time, had two moldings, both oak, one 2 1/2" wide, the other 3 1/2" wide, one was weighted at the rabbit, the other at the outside edge. To get tight corners I would have to adjust the angle of the double chop saw, both sides, the width of an extra fine sharpie ( .5mm ). When I proved to the boss ( owner ) that it was the only sure way to get tight corners on all sizes of frames ( 8 x 10 through 28 x 40 ) he contacted the molding supplier and had them make a 3 1/2" molding that was weighted at the rabbit, like the rest of the moldings that we used, end of problem and constant adjustment of the machine.