Matt Johnsen
Assigned
Reported
Comments
I used to have this issue on a single portal, only when exiting the nether to the overworld. I forget where I read about a possible solution (I guess not here, but maybe on one of the duplicated bugs) but it came down to which block inside the portal frame was the one initially lit. If it was one of the top blocks, then I think when I entered the overworld, I spawned at that block, so that my head was inside one of the obsidian frame blocks, and I'd take a half heart of damage before I fell down the two blocks to the bottom of the frame. To fix the problem, I broke the frame, repaired it, and then made sure to light one of the blocks right above the base of the frame to activate the portal. I never experienced the issue again.
I had this issue when I first updated, but then I joined a new world created by my son on his tablet, and after playing in that, I was able to launch my old world without problem. Not sure if this is helpful.
If this is "fixed" it is only in the sense that maybe it won't happen to a new chest. My items are still gone, and I also made a copy of my world to check my valuables chest, which i hadn't opened (I realized what was going on after three or four chests and quit) and yeah, all the netherite is gone, half of my diamonds, all my gold and iron, etc. This is a game ruining bug!