[MC-166908] Sand turns back and forth from a block to an entity on top of moving pistons

The bug

When sand falls on very quickly moving pistons, it is continuously turned into a block and back into an entity again. This allows for plants that are placed on that block to grow very quickly (see MC-113809 and MC-165023)

To reproduce

Build the contraption from this video by @unknown: https://youtu.be/TPklP6WZrLk

Video

Video by @unknown showcasing a farm that can be built using this bug: https://youtu.be/mg93ldmI584

Linked issues

is duplicated by 1

MC-167059 Falling sand bug Resolved

relates to 1

MC-165023 Sand dropped on boats can force update cacti, sugar cane, and bamboo causing them to grow very quickly Resolved

Attachments

2024-09-27 22-13-20.mkv

Comments 2

ampolive 2021-07-04T00:02:21Z

Can confirm in 1.17.1 Release Candidate 1. Might require multiple attempts.

sof 2024-09-30T14:21:50Z

Cannot reproduce in 24w39a. Might still be an issue though if anyone else has better luck 🙂

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