The plate was installed wrong (too far out). Since the slide has 4 plates and this one was installed with the roller off the plate, it has been bearing a higher amount of the weight of the slide when it comes in and bumps up onto the plate. I don't like the stress that is putting on that one roller.
So I have decided to remove the plate (I popped it off the 2 screw heads I couldn't get to as suggested by another post) and let it roll without the plate on that one. It was already doing that on half of the travel of the slide movement anyway.
No more catching as the slide comes in so it is "fixed".
I have kept the plate to install later in the correct place if I want to.
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