I found this bug that chest will stay ofen until you break it.

How to reproduce:

1. Create a large chest
2. Break one of the large chests halfs
3. You will see that other large chests half will stay open itself

Hopefully you understood me right. I posted a screenshot of this bug being open without showing it,s inventory.

                                                                | |                     | |

                                                               \/                      \/