If a player with Mining Fatigue mines an instantly-mineable block by holding down left-click, the block is not mined instantly.
Steps to Reproduce:
- Place an instantly-mineable block such as grass in a line
- Type /effect @s mining_fatigue 9999 1 true in the chat
- Switch to Survival mode
- Mine the grass by holding down left-click
The grass is not mined instantly and shows cracks.
It should be mined instantly.
Holding down left-click:
Minecraft 2022-02-03 11-51-31.mp4
Minecraft 2022-02-03 11-52-40.mp4