Anyone know?

So I mainly play piggy on my PS4 now to reduce lag and it’s easier rather than mobile. When I join my vip server on my main account on my playstation by joining my alt account on my phone it automatically puts me into book 1 with just me and my alt, but when I go to try and join book 2 I get put into a public server? This hasn’t happened before. I’ve tried going into Book 2 with my alt and then my main but still doesn’t work! Can anyone help?