While playing on a Mojang Realms server, we attacked the End and killed the dragon. Afterwards we jumped through the portal and were reading the credits. At the credits for paintings, the server kicked"You have been idle for too long!" When we rejoined, we were back at the beginning of the credits and had to close them to get back to game.

Steps to reproduce:
1. Be on a realms server.
2. Jump through the return portal in the End.
3. Watch the credits through.
4. Get kicked around the paintings credits section.