So I turned on the pointer control and as I have been using it throughout the day and paid more attention, I think a lot of what I attributed to as "glitches" with being able to select things were actually due to my eyes not being correctly identified as looking at the right spot. I'm guessing that this is due to the lenses and not due to a UI glitch.
For example, I am constantly finding that the pointer is about half an inch above where I want it to be, especially when looking at the bottom of a window.
I tried with head tracking and that just kills my neck lol.
Also re-set the eye tracking through Settings 2-3 times without significant improvement (it works for a short time and then it reverts back).
Is this what you're finding too
@DblHelix