@liaizon on your single user instance are you following the account and if so was it before the video was even posted? Because it looks like your instance just hasn't fetched any apconf content because it didn't know about it. Whereas for social almost certainly already had a subscriber and so knew about the content and so could render it
@darius seems you missed the drama. if you want to have context here is the thread
https://toot.matereal.eu/@schmittlauch/104951185553676081