Loot chests are not randomizing if placed on the same coordinates.

• Partner Rank: 2
• Partner Team Reporting: Aurafall Studios
• Verification Build: 1.16.210
• Summary: Loot chests are not randomizing if placed on the same coordinates.
• Impact: This affects replay-ability and randomization as every chest that is supposed to have randomized loot is no longer doing that.
• Repro Steps: (this applies to any world from the marketplace or a vanilla one that you generate, so I will post the steps for a fresh generated world)
  1: Start up a new world in creative mode (no other settings need to be toggled)
  2: Fly to the nearest village or structure that is known to contain loot chests
  3: Ctrl+MiddleMouseWheelClick (aka, pickblock) to pick up the chest and to retain its NBT data so that randomization is kept (Note: if you only pick block without holding CTRL key, you will not obtain the randomized loot NBT. A keyboard is needed for this)
  4: Place the chest down while in creative, and open the chest. Make note of what's in there.
  5: Break the chest, and place it down again in the same spot. The items SHOULD be the same as before, no changes.
  6: Now place the chest 2 blocks away (anywhere really) and open the chest. The loot should now be different compared to the first chest. 
  7: Break that new chest and place another in its place. Contents will once again mimic what was in there a second ago.
• Repro Rate: 3/3
• Observed Results: If the above steps are followed, the chests should still be randomizing IF they are not placed in the same coordinate space. 
• Expected Results: The chests should ALWAYS be randomizing even if placed in the same space repeatedly. This feature worked in 1.16.2, but no longer does for 1.16.210
• Screenshots/Videos Attached: Yes, see attached video
• Regression Builds: Worked up until 1.16.210
• Notes: None