I'm using Chrome on Windows, I set my video speed to 1.5x for example, when I finish the video and hit the Next button at the bottom of the page, the new page loads and if it contains a video, the speed button will still display the 1.5x, but in reality the video speed is back to 1.0x. So the button is displaying the wrong speed.

If I click the 1.5x again nothing happens, since some part of the player still believes that's the current speed, so now to change to my desired number I need to click some other speed and then click back on 1.5x.