Why is my comment not showing up on sh.itjust.works ? - Lemmy.world

Im a bit confused. In a post (made on lemmy.ml [http://lemmy.ml]) I replied to a comment (from someone on fmhy.ml [http://fmhy.ml]) and my comment is not showing on sh.itjust.works. I am registered on lemmy.world As far as I understand these instances are connected. Is it taking a long time to aggregate ? Does it have anything to do with language selection? I have undetermined,greek and english selected. Here is the post [https://lemmy.world/post/261248?scrollToComments=true] but it is in greek so it may be a bit confusing.