Other people on my multiplayer game crash while standing on shulker box.

Same issue occurs on Bedrock Xbox One X. Tested on local multiplayer split screen. 

In addition to the game crashing when player standing on top a shulker box opening it, crashing also occurs when:

• player jumps over (or on top of) shulker box while opening it

• player jumps over chest and opens it 

In both cases, the player is within render distance of another player.

same as above but on nintendo switch and when the second player jumps for me its not jumping on the shulker box that makes it freeze its just someone else jumping anywhere

could this relate to MCPE-62504

on pc, with two ps4 players joining the world this happens to me. Sometimes my game crashes or sometimes my friends' do

In my realm, someone nearby opens a shulker and the others game crashes. Tested it a bit in an offline world and nothing happened. Seems to be only in realms because I've tested it in multiple realms and it happens in all of them.

still happens in 1.16.1. sometimes happens when one player opens the shulker whilst standing on it, when they jump on top of it, or just by walking on it.

It does it on Playstation 4 as well, but what's interesting is that sometimes it will make the player on top of the shulker box completely invisible for 5 seconds to about a minute and sometimes it just takes the shulker box opening to crash the game.

Yes I have noticed the invisibility as well. I have it clipped actually. I would attach it but the xbox app wont let me share or download clips for some reason.

works on both lan worlds and server/realms

Frequently occurring during local multiplayer on Switch for my family, across multiple worlds. 

fixed in 1.16.100.51 beta (again)

I can confirm this is now happening on PC and on BDS servers. Even if you're not in direct line of site to the person opening the shulker it causes the game to freeze and must be restarted. 

Along the same lines as the game freezing issue: 

I witnessed a player standing on a shulker, then when another player opened the shulker the player standing on the shulker appeared to teleport across the room as the shulker opened and then teleported back as the shulker closed. The player on the shulker did not experience the teleportation.