My friend R.D. got held back in the fifth grade. His twin sister got held back too. I still remember a conversation I had with him when I had moved on the sixth grade. I said “I’m in sixth grade now… Sorry.” He said “It’s actually kind of fun (taking grade 5 again.)”
The following year I moved on to seventh grade and by the time I got to eighth grade and he would have been a seventh grader I still never saw him.
I never did know what happened to him.