Game will crash when entering the neither

Everytime I enter the neither the screen will go to Loading terrain and the game will close. This has caused items to disappear in the game or duplicate. such as i will change armor to gold. ill put my diamond armor in a chest, pull the gold armor out if that same chest put it on and go to the portal. Then the game will crash. When I reopen the game. I have the gold armor on, the original set is still in that chest and me diamond armor is gone. I have only got to the neither once in the game. I have had this problem in 1.16.0.59 and 1.16.0.60 I have a full video available upon request.