iPhone 14 Pro prototype issue

I have a bottom bar which is at the bottom of a long frame in Figma, with the constraints “center” and “bottom”. “Fix position when scrolling” checked.

This keeps the bottom bar at the bottom of the device screen. It works perfectly for all devices except the iPhone 14 series where the bar moves slightly up and down when switching between different frames.

Could this be a Figma problem with the new devices?

Today I faced a very similar issue regardless of viewport size in the prototype mode on windows, both in app and browser.

My sticky button jumped up for a split second when I triggered the hover effect with my cursor.