If you stand on a shulker box and open it in survival the game decides to crash.
Steps to recreate:
Make a new creative world and place a shulker box.
Switch to survival and stand on the shulker box.
Proceed to open box while you are on it.
Game will crash after about 30 seconds
More detail:
While the game starts crashing you can move around but you can´t break or build anything.
It affects the host mostly on multiplayer
I have only fell victim to this glitch in multiplayer.
Related issues
Comments

Thank you for your report!
We're tracking this issue in MCPE-60856, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Mojang Support – ✍️ Feedback and Suggestions – 📖 Game Wiki