Major Chunk loading error

I was playing on my survival world and went exploring. I found a large desert biome with a village and a temple! i saved and quit and when i came back later nearly half of the desert went missing. This isn't one or two chunks this is MANY chunks! the entire temple in nowhere to be found (i ad marked the coordinates) and the village is missing some structures. For some reason I cant attach a screen shot. I hope this is fixed soon.