Was playing coop with the fam on a LAN server and noticed a strange bug after restoring a backup.
Extracted & overwrote using the unzip command in my linux server's terminal (Ubuntu 24.04.3 LTS) :
pzuser@linux_server:~/Zomboid/backups/startup$ unzip -o backup_1.zip -d ~/Zomboid
After restarting the server & logging in: we noticed that some of the items that we had recently interacted with were duplicated, but when you pick them up and have both the original and duplicated items in your inventory, they get merged. When you put them into the same container however (or on the floor in the same vicinity) they only appear to merge visually, but when you pick one up into your character inventory, you will see that they are duplicates again until both items are in your character inventory to actually merge them.
Also, furniture items are also duplicated, but don't merge at all (so long as they're actualy placed, and not simply dropped onto the ground I assume - haven't fully tested this yet).
Hope this makes sense. It's a weird bug to describe 😂