How to reproduce
Rename a chest on an anvil, e.g. "Renamed".
Place the chest. When you open it the renamed name will be displayed as title, i.e. "Renamed".
Place any chest besides it, even a copy of itself, to make a double chest.
→ ❌ The double chest will have the title "Large Chest" when opened, not the custom name (i.e. "Renamed").
If you undo step 3 by removing the chest, reverting the double chest to a single chest, the single chest will again show the correct title i.e. "Renamed".
Linked issues
is duplicated by 5
MC-148810
Double Chest CustomNames not showing (just displays 'Large Chest')
Resolved
MC-149719
Double Chests not keeping names
Resolved
MC-150875
When you put 2 chests with the same names together to form a large chest, the title bar of the chest still says "Large Chest"
Resolved
MC-150987
Double Chests don't display custom names when opened
Resolved
MC-170749
Chest names don't work
Resolved
Attachments
Comments 14
This bug appeared in 19w02a. Probably has something to do with the fix of MC-92759.
4 more comments
I provided an example, and can confirm that this is the case.
However, this might not be a bug, but an oversight. It'd be cool if large chests could be name, though 🙂