I update my application a few hours ago to the 1.53 version and logged on for the first time today afterwards. While mining, I noticed my diamond pickaxe with an Efficiency IV enchantment did not appear to mine as quickly as it did yesterday. I then crafted a new diamond pickaxe and attempted mining two obsidian blocks, one with the enchanted pickaxe and one without. They were both mining the block at the same speed, around 9.5 seconds each. Is this a known issue?
Edit: The enchantment also seems to not be working on the iron pickaxe.
I came here to ask about the same issue, my diamond shovel with efficiency 4 and unbreaking 3 acts as if it has no enchantments at all. This effected all of my amazing tools. And I'm hoping wet get a patch.
been doing a lot of haste 2 clearing and noticed this immediately after the update. kept thinking haste 2 wasn't working right but after some testing with various picks and shovels I realised efficiency doesn't seem to be working.
Efficiency and unbreaking do not take effect when on a tool. But silk touch, fire aspect, and sharpness still work. I tested that even new tools that were just enchanted minuets before I posted this, the efficiency 4 unbreaking 3 diamond shovel dug no faster, and broke no slower than an unenchanted one. To give the system I'm on, I'm on Playstation 4
To further add to your comment, I've noticed that Fortune is also functioning properly (PS4). On the Unbreaking side though, I did a test with an Unbreaking III iron pickaxe (which I had previous to the update) and a newly forged iron pickaxe as Unbreaking did not seem to function. It appeared to be working when I tested it (mined 2 stacks of stone with the Unbreaking pickaxe vs. 1 stack of stone with the unenchanted pickaxe, the unenchanted had more wear than the enchanted one even after only having broken half the blocks), though I will agree that it did not appear to function properly on my diamond pickaxe (I did not test the diamond pickaxe).