Using any sword (Wood, stone, gold, iron, diamond), you can not break any tall grass block, but with other tools you can.
What I expected to happen was that the tall grass would break.
What actually happened was that the tall grass didn't break.
Steps to Reproduce:
1. Find or place some tall grass
2. Select your sword of choice
3. Attempt to break the tall grass
60th Duplicate of MC-18368, please use the search function to see if your bug has already been submitted. Currently over 57% of tickets are being closed as duplicate.