I found some sign bugs on Survival. Click on the Spoiler button to show the pictures! 1. Place a sign on the side of the block, not on top of the block. Spoiler: Picture 2. Type /cinfo and click on your sign to see if it is protected. Spoiler: Picture 3. Now place a block next to the sign and then destroy it. Spoiler: Picture After destroying the block next to the sign, you will see this message "Sign Unregistered". But I didn't I type /unlock or /cremove. Spoiler: Picture 4. Type /cinfo and click on the sign again to confirm if your sign has been unregistered. Spoiler: Picture Now the chest bug. 1. Make a shop. You can place the sign on the chest or on top. Spoiler: Picture 2. Type /cinfo and click on the chest and sign to check if it is protected by you. Spoiler: Picture 3. Now destroy the sign. It will say "Sign Unregistered". Spoiler: Picture But it also unregistered the chest that the sign if on. 4. Type /cinfo and click on the chest to check. Spoiler: Picture This bug will not work if you are not the owner of the sign or the chest.