Auto jump unexpectedly get invoked when running across a flat surface causing a bouncing effect of your character

Updated from 1.12.x to 1.13.3 and I noticed that auto jump gets unexpectedly invoked when running across a flat surface after a little of time.  I have yet to figure out what would cause it currently.  The end result is the character bouncing up and down and while running across a flat surface.  I have never had this issue until the latest update.