Infant not sitting in high chair properly

After the 3rd try, he fed him... but he still sits like that

Hi onyx779​ 

is it just this infant that has the issue ? Did you try another high chair ? Did you post this with moveObjects on ?

didn't have MOO on. I didn't try another high chair and i don't know if it's an infant only because that's the only high chair aged child i have in the family