[MC-226572] Repeating Command Block flickers on break if it contains a command

Check this video for an example of the bug: https://youtu.be/hGhqyq2NGeA

I couldn't reliably reproduce the bug in singleplayer, but it was reliable on a multiplayer server with 40ms ping. Steps to reproduce in creative mode/opped, using Fancy graphics settings:

Start a new server, probably a non-local one so that there is ping.
Run the command in creative mode: /give @s repeating_command_block
Place down the block, right click to configure the commandblock.
Set Always Active to true, set the command to anything non-empty. I used effect clear @p.
Break the command block, it should flicker briefly before being destroyed.

Comments 1

[Mod] Jingy 2024-07-21T02:44:57Z

I could not reproduce this issue in a 1.21 server, on any of the Chunk Builder options. Please verify that you can reproduce this issue in the latest version, and attach a new video of the bug occurring.