mojira.dev
MC-129206

Redstone components, rails and most vegetation in invalid positions break when updated

If rails, redstone repeaters or redstone comparators find themselves in a position they cannot naturally be placed in, and receive a block update, they will break. According to the comments in MC-129127, this should not be the case, and the block should remain a block and not break.

Steps to Reproduce:

  1. Set a comparator in the air:

    /setblock ~ ~4 ~ minecraft:comparator
  2. Place any block next to the comparator, updating it

Linked issues

Attachments

Comments

Aaron Rhodes

Placing the block above them causing them to break is a bug, but placing blocks next to them should still cause them to break, since it makes contact with the placed block on the sides and should thus update them.

user-f2760

Actually, since 1.13 the "support" block has to change for every block, in order for it to check if it's in a valid position; this is also the case for fence/pane/wall connections.

Avoma

Can confirm in 20w51a.

muzikbike

(Unassigned)

Confirmed

(Unassigned)

general-breaking-zone

Minecraft 1.12.2, Minecraft 18w16a, Minecraft 18w20b, Minecraft 18w20c, Minecraft 18w21a, ..., 21w03a, 21w18a, 21w20a, 1.17 Pre-release 1, 1.21

Retrieved