I deal with one problem. Whenever i put on a big backpack (Big rucksack, ID - 19669, it has 1000 slots) on Arid Reborn map. Everything seems normal until later it says "Missing space" whenever i pick items. When i check my backpack, it has like 700 empty slots. I dont understand whats the problem. Why it doesnt let me put more items even though there's a lot of space in my backpack?