Weird Focus issues with 24-70 GM on A7RIII

[eyesonly]

 

I'm noticing a strange issue with my 24-70GM that seemed to have developed after having more and more auto focus issues with this lens in general. Now, when I turn the zoom ring and hit either end of the zoom range (24mm or 70mm), the focus goes completely out of whack. If I turn it back just slightly from the physical limit, the focus goes back to "normal". It's such a bizarre behavior. I captured the video using my phone and the Imaging Edge App to visualize it. The jump in focus is very noticeable at the end of the focal range in both directions. Even with continuous autofocus and half pressed shutter, I get a significant jumping in focus at those points.

Does anyone have a clue what's causing this? Time for a repair?