so i am mining mithrill ore in burning steppes amd everytime i fly up to an ore it dissapears; and as soon as i fly away it reapears. so i left that ore thinging it was only one that was bugged. but every ore that i have been finding anywhere in eastern kingdoms keeps doing this to me. Ive missed out on at least 300 ores in the last 2 hours ive been trying to figure this out. HELP?