My son had “your score is still pending” on Friday 5/18, then he got an email, early Monday morning, to notify him that his score is under administration review (another topic is in forum). Most likely CB think there is a “cheating” and need to be reviewed until June 8.
There are a couple thousand SAT test taker, out of nearly 3 million test takers worldwide annually, to have score on hold to be reviewed. I told my son to give me 6 random numbers so I can buy lottery tickets … I think he is lucky so far :))