Nope. It is happening whatever the order is. And I also noticed that one post had for likes
name, name, {arg;,,,,} and when I "unlike" it , it said about 4 more names that had liked it. So I clicked "like again" and it showed name, name & [arg...].
So nor rhyme or reason. It happens most of the time but not all of the time.
Just cleared cookies and it is still happening.