Minecraft Username: killrdarknes

Brief Description: I played SG, and was in an arena. Upon using /main from within the arena (waiting for a game to start), I spawned back into Main with both all my armor and the item I was holding gone. Wiped.

Instructions:
1. Have armor on/something in your held item slot on Main (I was in the Nether for both instances, not sure if it matters).
2. Join an SG game.
3. While waiting for game to start, leave the arena via /main.
4. Come back to Main, and see your armor and item are gone!

How many times did you recreate this? Twice, within a few hours of each other. Once, I switched quickly from Main to SG and then back to Main, and lost my items. The other time, I was in an arena waiting for a game for about 30 minutes; I left, and my items were gone.

Result: Items in Main were missing!

Expected Result: My full Main inventory to be preserved upon re-entering Main.


Evidence: I have no screenshots, nor do I have an ID for the first Max Netherite Fort Pick I lost, but I do have an ID for the second one :)
ID is: #KPNES002

Update:
Here is a video of the glitch happening:



It seems to only occur when another player is in the lobby.