I have been having odd problems with my two VREGs, this is related to the post I made previously. Anyways, my layout was not the problem, which was a theory I was little skeptical of given the symptoms. I assembled my new board and the problem was still present, so with that possibility gone, and the fact that I have used one of these before in a build, it had to be some sort if cross talk between the 5V reg and 3.3V regulator. So I removed the 5V regulator from the PCB and my problem with the other regulator was instantly fixed.
This was a possibility that I brought up in my previous post and it was completely ignored, and while I don't expect this support forum to be wizards when it comes to this sort of stuff, I am a little frustrated with the absolute confidence in the answer I was previously given, this is a university project, and I do not have very much time or resources. If you are not one hundred percent sure on the answer you are giving to customers, you should mention this in the reply. I ended up ordering the exact same PCB, with the same problems, because of cookie cutter advice that is given to anyone that doesn't follow their layout, which for this specific product does not exist anyways. Interference between multiple regulators is absolutely something that should have been tested, and this is definitely a bug that should be noted somewhere in both the products documentation. It should be noted in every switching regulator you sell. And threads should not be locked until a solution has been reached.
5V and 3.3V are very common, and I suspect this problem exists in some small form on every board that uses any two regulators from this family. And this may be a common problem with switching regulators that I am not aware of, but I mentioned this idea in my initial post, and it was not considered.
This post isn't just for venting my frustration, my project is now overdue, and I am not sure specifically how these two circuits are talking to each other. I am pleading anyone with any sort of knowledge on this stuff to help me. I will not be using these regulators on my next iteration, but if somehow this issue really has nothing to do with these ICs I would really like to be made aware of this. If this was something that was actually tested in production, I would like to know.