I'm using the Windows 64bit version and also i use Windows 8
when i leave and come back on. my own characters inventory remains but not the chests inventory and one or two of my food or water or both disappear. also both of my chests were around spawn. and one had lots of potatos an the other had lots of wood an scrap.but not full.
i think the chest glitch is caused by to much items in chests. because i did a test and put only 9 wood in one of the chest and came back on twice and the 9 wood was still there. also both of my chest are around spawn and next to each other i only had two chest in that world.
this may be diffrent for other people
Ps
i have 20 Foundations.no stairs.4 Cropplots.5 Cooking stations.5 Water purifiers.2 Chests.5 item nets.
i tried my best to tell it with much detail~