Tab order for video in Web Object

Hi, I have a YouTube video embed in the Web Object. This page only has Web Object, Next  and Back buttons. I created the tab order so keyboard navigation should go to video play button first and then Next and Back.

My issue: While using NVDA or Jaws reader, I use the tab key and keyboard arrows to navigate, the YouTube Play button does not show up first in the order. It jumps to Next, Back and then Web Object video.

I tried to put delay of Next and Back button for second, but it did not help. Any solution to fix this issue?