I use Photon Chat package for mulitple online chat. Then it was disconnected

I built Chat-Scene of Demo Chat in package.I tested 1 : 1 chat, later one of them was disconneted.
At first A and B were connected and send ,receive messages.
Btw later B always is disconnected. Why is it diconnected?
Is is impossible to chat between mulitple users?
Please help me


  • I 'm gonna to make chatting app using Photon chat package in unity.
    But it is disconnected.