I jumped into the portal and it froze for a few seconds above the portal, the next thing I know I'm in the void trying to equip my elytra and fly out but I didn't have enough time and I died and lost all of my items which I had spent hours even days struggling to acquire, I'm terribly sorry incase this isn't the information you need to fix this issue but all I'd like is to get back my items without using any types of cheats since I am trying to gain every single achievement. I do not have any pictures to confirm this but I really want you to look into this issue and get me my items back, I don't mean to sound rude so I am sorry in case I give off that feeling.