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  1. Minecraft (Bedrock codebase)
  2. MCPE-161802

Circuit breaker pulse limiter does not function properly when receiving input from repeaters, redstone torches, observers, or comparators

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • 1.19.21 Hotfix
    • None
    • Unconfirmed
    • Windows

      The traditional circuit breaker pulse limiter (as shown below) does not function if the redstone line inputting into the block above the sticky piston is being powered by a repeater, comparator, redstone torch, or observer - most redstone components adjacent to the block (such as pistons, droppers, dispensers, doors, note blocks, etc.) will be activated by it, but redstone dust, repeaters, and comparators will not be powered. The expected behavior is for all components to be powered.

      Notably, this bug does not occur if the block is immediately powered due to a physical modification to the circuit - if a redstone torch is added, a piece of redstone dust is replaced, etc.

      How to Reproduce:

      1. Build the following setup (choice of generic building blocks is arbitrary). The leftmost repeater can be replaced with a comparator, or a redstone torch attached to the lime block. (Note: The piston is a sticky piston)

      2. Optionally, place a note block adjacent to the diamond block, to demonstrate that most redstone components will still be activated.

      3. Turn on the lever. The note block will play and the piston will extend, but the rightmost repeater will not activate and the redstone lamp will not turn on.

      4 (Optional): With the lever still on, remove the redstone dust, and then replace it. This will cause the rightmost repeater to briefly activate, as expected.

      Expected behavior: The rightmost repeater should also be briefly powered, thus turning on the redstone lamp.

       

            Lemondoge Logan Benjamin
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