CHanged theme and hosting service and issue was fixed.
I am having the same issue. Everything is up to date and still doesn’t work.
Tferral – I am seeing the same thing!
When I highlight-right click I do not have the option to ‘View Source’
I am wondering that. ANd I wonder if when I make this ‘live’, it won’t show? The time doesn’t change, just double enters the date.
Sorry! I am really new to this to please work with me here.
I am running WP 5.1.1
I am using the theme – Massage Clean
I now see when I make a change/edit to the post that is when the date shows up twice.