mojira.dev

Mia L.

Assigned

No issues.

Reported

MC-255590 Retracting piston breaks gravity block if bud powered Works As Intended MC-167974 Crash when moving any item with durability in the first slot of an anvil Cannot Reproduce

Comments

This also means that, if you have a pile of sand or gravel, and push the bottom of the pile by activating the (non-sticky) piston with a 1-tick pulse, it will both push the gravel on the face of the piston, and break the gravel right above it when retracting.

I noticed it only happens when you update both piston and gravel at the same time.

Updating the gravel and piston at the same time using the following things made the gravel break:

  • placed or broken blocks (by the player's hand, updating a block that shouldn't be allowed to be on a piston, or landing falling-blocks, lighting TNT with flint&steel)

  • noteblock, state-changing redstone wire, unpowering redstone torch

  • powered rail, activator rail, or detector rail (eg. by placing one next to the piston and one next to the gravel, on a slope, connected)

  • unpowering dispenser/dropper/hopper, trapdoor, fence gate (only updates gravel, not piston, so you need to update the piston at the same time using something else like a noteblock)

  • level-changing cauldron/composter, eaten cake, charge-changing respawn anchor, (un)lighting furnace,

but not:

  • an extending or retracting piston or piston head

  • chest, skulk sensor,

  • redstone repeater, redstone comparator (any direction, in/out of the gravel block, in/out of powering the piston)

  • growing sapling -> tree (using worldedit to set a sapling above the piston)

  • moved block (using another piston to push blocks between )

  • (redstone lamp, chest, shulkerbox, )

I assume this is due to the update order, hence why repeaters and moving blocks don't update the gravel at the same time as the piston ❓ .

Using this same method, I tried updating an upward-facing piston and gravel simultaneously, but I couldn't reproduce it, so it seems to only work horizontally/sideways.

(similar issue on server with plugins?) Right clicking the animal with a food item allowed me to sit/stand my cat.

It's been patched in 1.15.1-pre1

But it was a problem with any item of durability in Multiplayer. If you put a full durability item in the first slot of an anvil, it crashes. Gamemode and dimension don't matter.

Patched in 1.15.1-pre1