Shulker Boxes should not despawn.

This has happened to me twice in the last two days. I was playing and had put down a shulker box to get items in and out. My internet got temporarily disconnected and both times not long after, but before I could reconnect the hosted world I connect to also goes offline. Saturday it was due to the Switch turning off after the host was afk for too long. Today I am not sure why his world turned off. But when I manage to get back in both times the shulker box is gone.

The only explanation I have is that once I disconnect the shulker box goes into that state where an item is temporarily in place and will despawn after a certain period of time. And since in my case the hosted world then restarts. the shulker box and all of it's contents are then despawned. Can this be fixed to where a shulker box does not despawn like other items? I realize my situation is rare, but since it's now happened twice in as little as two days I have to think it's not as rare as it would seem. And losing the entire contents of a shulker box can be devastating in survival mode, which is what I am in. It cost me over 40xp, and about 7 enchanted books for me to replace just the armor that I had temporarily placed in the box. This was hours and hours worth of gameplay and unbelievably frustrating. Then to happen again the next day. The code to handle shulker boxes really needs to be changed or at least reviewed, especially in the case of a disconnect.

I keep all my shulker boxes named and the name contains an individual number for each box. This is how I am aware of exactly which one goes missing.