Player disconnected from server, but still connected on bungee

Spigot Version: Latest 1.7.10 spigot protocol hack
BungeeCord: Latest 1.7.10/1.8 bungee protocol hack

We can see the player in the /glist(bungee), but not in the /list, and same with /seen
the player its not connected in the server, but bungee says that its already connected to the server.

any idea to fix this?

with /list i see 64 players, but bungee says 70 connected into that server.

40mins and the player can`t connect
https://github.com/SpigotMC/BungeeCord/issues/771...

Player disconnected from server, but still connected on bungee