In my realm my friend wanted me to go to the Nether with her so I took my diamond pick axe to mine quartz and some other stuff. When I was teleporting to the nether, my screen said “Building terrain” and then I heard noises which you hear when a player is dying. Then I could hear from my friend’s device that the system said I died suffocating in a wall, even though my screen was still “Building terrain”  this entire time. When my friend went to check the portal there was only XP but no any of my stuff... it’s really frustrating because my stuff weren’t in the other side of the portal either.