The game doesn't render whenever I load into it sometimes.

I've been having problems with my Realms world, sometimes when I load into the game it doesn't render fully and I'm stuck where I load in and see through the world in some areas. The others that play on the realm do not experience these problems when they load in. Sometimes it fixes its self when i leave minecraft and come back in, but other times it doesn't fix its self for  a while.