Minecraft Username: blowtube123Brief Description: Recently, I noticed a bug where when you use a tool to break things your durability does not go down 1 per block. It is more like it goes down 1 per 10 blocks.Instructions: Break 200 blocks with a Max Shovel.How many times did you recreate this bug?: More than 10 times.Result: Durability does not go down 1 per block.Expected Result: Durability goes down 1 per blockEvidence: Durability rate is in the top right corner.
Then it's not a bug. Unbreaking works by making your tool not take damage as often as it does without unbreaking.