Lan World

Me and my husband was playing 1.13 on a Lan world in like 1 our then we logged out. WE DIDNT DOWNGRADE VERSION OR UPGRADEGRADE AT ALL. Then we i logged back on and opened the Lan. Then my husband logged on i did not have his things and was at world spawn. happens in 1.13 and up. and happens often.

i could not find anyone saying this so not copied

WHEN I HOLD OVER HIS NAME WITH THE MOUSE IT SHOWS A ID "c01364d4-38d6-4879-b7c7-d8bf80b08f30" and when he had his things it shows this "10ca32dd-ae21-342f-80f0-81efaabc7683"

HELPER ITS NOT THE SAME PROBLEM I SEARCHED BEFORE And NO ONE HAVE MAKE A SOLUTION WHAT CAN I DO????