No connection to world

So I'm playing on Playstation4 and my friend plays on PC, i cant join his world eventhough other friend's can join. There's always the error "no connection to world" a very few times i could join but it was totally bugged with no movement and no chunk loading. After leaving and trying to rejoin it wasn't possible again for a quite long time

i tried many different options and advices from the former support, it is no network default i think it has to be a problem of crossplay which has to be solved trough development