Video not playing on iPhone X with version 7.1

I'm working on a site using SS 7.1 and I'm having issues with video playing properly on iPhone X. Has anyone else had problems with this and is there a solution? All other devices seem ok now (there were issues recently that seem to have been resolved). Video is hosted on Vimeo.

Site is https://pendower-beach.squarespace.com

I can send login password if anyone can help me out with this.

I'm having the same problem with background video hosted by Vimeo. The iPhone X with SS v7.1 are not autoplaying the background video on an index page.  All other iPhones are playing the background video fine.  

Hi Squarespace, if you have any definition of this problem, please let us know. Maybe we can help with creating the solution. 

Problem symptoms: 

• Squarespace 7.1
• iPhone X (Google Pixel 4 may be a problem too, needs confirmation) All other phones work
• Background video hosted at Vimeo 
• Background video does not auto play, only fallback image loads

More background

• Low power mode off, phones fully charged
• No console errors detected
• Vimeo adaptive bitrates working on other devices
• The endpoints confirmed to work as expected
  • iPad Pro, iPad, Chrome Mac, Chrome PC, Edge, Safari
  • Chrome dev simulator of Google and Apple mobile devices.
  • Safari dev simulator of Apple devices.

I too am having this issue and am desperately looking for answers.

Site is https://spinach-lily-444y.squarespace.com (prelaunch without our domain)

Access password is "staff"

I'm still stuck.

I spoke to SquareSpace and they said it might be he settings in the iPhone X.  I have not yet found any settings that correct this problem.   

I’m also having this issue with iPhone X and iPhone 11. 

same issue over here - any updates from square space on this issue ? issue on iPhone 11 - on AT&T network - video running on Vimeo...