When breaking a block you get a lot of particles causing the game to lag.
Reproduce: mine a lot of blocks quickly like netherrack
Comments 2
Cleaning up old tickets: This ticket has not been updated recently (~7 months+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue and is affecting the most recent versions, then please comment, or create a new ticket following the Issue Guidelines.
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still happens in 1.9.0.2