I believe it just finds the user and not the post because the previous posts aren’t synced. So if you are the first user on your instance (eg lemmy.world) to look at that user, only the new posts that this user posts after you have subscribed are synced to the instance.
I believe it just finds the user and not the post because the previous posts aren’t synced. So if you are the first user on your instance (eg lemmy.world) to look at that user, only the new posts that this user posts after you have subscribed are synced to the instance.