Explanations:
This is a very strange but reproductible bug. Indeed, and using Browserstack (simulating an iPhone 13 Pro Max), I was able to reproduce it each time.
Some images are randomly not loading. An image that was loaded one time is not necessarily loaded another time. You can navigate between the below pages to make the bug happen:
Basically, of course, it is more than strange that a problem occurs on a specific device that uses the same OS and browser as other devices from the same manufacturer, which makes it almost impossible to figure out what the problem is.
I just wanted to jump on this as this was reported by some of our users as well, again with iOS devices.
I did some digging a few months ago (February I believe) but I didn’t give much attention to this as it was a very small number of users that had this issue. All with the same device / browser iOS and Safari.
So I confirm this is happening for us as well.
If there is any solution I would be glad to implement it as well. I’ll try to disable lazy loading on our end as well to see if that makes any difference.