Palate in Ultrasound

Looking for some experiences or reassurance about palates. Had my 20 week anatomy scan this past weekend and the midwife said they couldn't see the palate - unsure if baby just wasn't cooperating or if there is something wrong. She said clinically it's not anything worrisome enough for me to go back for another but if I'm stressing about it I certainly can. I'm not stressed per se - even if there is something wrong it isn't major and there isn't anything to be done about it until baby gets here anyway. Just curious if anyone experience this "lack of" in ultrasounds and how it turned out? Tx!