Question 1. When I play on the server, my avatar is just fine. But after s few minutes, it turns into the basic avatar. Whats going on?Question 2. How do mods work and is it possible to limit them to specific worlds? Like say I create one world and put Mod 1 on it. Does it affect my other worlds as well or can I make it work for only that world?Last Question. What is the problems that come from downloading and running mod(s)?