Yesterday when my friend reset his realms he chose the Natural texture pack and checked the box to force the texture pack. When I joined instead of a crosshair I have a big blue box. My brother was having the same issue and he was playing on xbox. I don't own the texture pack so I can't download it (I can only use it when I am in his world) I tried going into the settings and deleting the texture pack and it worked fine and when I joined it re-installed it but it still had the same issue. I looked up this issue and people have reported it before in 2011 - 2013 but they said that it was being fixed in the latest snapshot (from 2011). but I don't know how I seem to be having this issue if it has already been patched for PC users a long time ago