[MC-153385] Constructing and placing a beacon sometimes doesn't grant advancements if there are any blocks more than 10 blocks above the beacon

The bug

If you place a beacon on a pyramid of metal blocks, and that beacon has blocks at least 10 blocks above it that its beam can shine through (such as glass), it won't grant advancements to the player who placed it.

To reproduce

Build a beacon base (with four levels, to test both advancements at once)
Place a pillar of 12 glass blocks where the beacon would normally go
Remove all of the 11 glass blocks below the top one
Place a beacon on top of the beacon base
→ ❌ You don't get any advancements
Break the beacon again
Remove the remaining glass block and/or place a glass block below it
Place the beacon again
→ ✔ You get the advancements

Original description

I just created a fully powered beacon in my survival world in 1.14.2, and the "Beaconator" achievement will not mark complete. I know the beacon is fully powered, as I've been given the status effect of "speed II," which is only possible at the highest tier.

Linked issues

is duplicated by 10

MC-183504 "Bring Home The Beacon" advancement doesn't trigger if the beacon is created underwater Resolved

MC-190479 Beacon achievements not awarded Resolved

MC-194954 Avancement "Bring Home the Beacon" and "Beaconator Resolved

MC-197016 Beacon advancements are not granted if there are transparent blocks above the beacon Resolved

MC-198023 beacon not giving advancement unless above y64 Resolved

5 more links

relates to 1

MC-150414 Constructing and placing a beacon doesn't give the advancement Resolved

Attachments

Comments 38

[Mod] violine1101 2019-05-31T11:24:58Z

Cannot reproduce. Do you have any data packs installed?

Seth Burroughs 2019-05-31T19:54:03Z

No, no data packs installed this is a vanilla world.

[Mod] violine1101 2019-05-31T19:54:53Z

If you break the beacon and place it again, will you get the advancement?

Seth Burroughs 2019-05-31T19:58:04Z

No, that doesn't work either.

[Mod] violine1101 2019-05-31T19:58:51Z

Hmm, weird. And you're sure that you're in 1.14.2? This was a bug in 1.14.1 that should have been fixed, see MC-150414.

28 more comments

Seth Burroughs 2019-05-31T20:00:57Z

I am 100% positive.

[Mod] violine1101 2019-05-31T20:06:32Z

Are you able to reproduce the issue in a brand new world?

Seth Burroughs 2019-05-31T20:18:54Z

No, I generated a new world in 1.14.2 and did not run into this issue. This only seems to be an issue in the world I began prior to updating.

[Mod] violine1101 2019-05-31T20:21:00Z

Could you attach the (zipped) world file of that world? If it is too large, you can upload it somewhere else and then link to it here.

Seth Burroughs 2019-05-31T21:03:00Z

Here's the link: https://www.dropbox.com/s/fpp6ru6hjgjtbpp/New%20World%201_14%20copy.zip?dl=0

Seth Burroughs 2019-05-31T21:32:46Z

There are a series of other, smaller bugs I've had with this world as well in which my elytra won't open, or blocks are taking multiple tics to register an action and/or not registering an action at all (chests won't open, mined blocks will regenerate). I'd appreciate whatever insight you can offer.

[Mod] violine1101 2019-05-31T22:42:12Z

Thanks for the world download. Can confirm. This is very odd.

About those smaller issues, they're probably caused by your not-so-small army of villagers. Unfortunately, villagers are not too performant in this update (see MC-145744 for instance) and causes large server lag (general collection ticket about that: MC-138550).

This beacon bug is not affected by that lag though, I turned my render distance all the way down to 2, and I still couldn't get the advancement.

I found out why this happens: You have a red glass block above the beacon! After removing the glass block, removing the beacon and placing it again, you get the advancement. This is clearly a bug and a leftover from MC-150414.

I'll update the description and title of this ticket accordingly. I hope you're fine with that.

[Mod] violine1101 2019-05-31T22:54:25Z

Alright, I tested this a bit more, and it seems like the issue only occurs if there are any blocks more than 10 blocks above the beacon. If there are blocks within 10 blocks above the beacon, it works properly.

Also, if this issue occurs, the beacon won't activate immediately.

Seth Burroughs 2019-05-31T23:34:57Z

I appreciate you looking into it! I've played the game for several years and never had such a weirdly specific bug. Thanks so much for running this to ground!

Johnibur 2019-06-07T15:47:26Z

It does not behave consistently. Most of the time, none of the beacon advancements are granted. When that happens, the beacon delays activating and the activation sound is missing when activated. But if you try to break and replace the beacon (and if necessary revoking advancements minecraft:nether/create(_full)_beacon)) you can notice the beacon sometimes works and grants advancements as expected.

TorteShui 2020-03-11T20:37:41Z

Affects 1.15.2 as well, had a glass block more than 10 blocks above the beacon and it only activated once I removed that block and placed the beacon again.

Tom Snively 2020-06-19T21:25:51Z

I had this issue in 1.16 release candidate 1. I removed all the glass above the beacon, replaced the beacon and I got both advancements.

Gustavo Dias da Silva 2020-07-15T18:13:16Z

Não consigo entrar no mundo dos meus amigos versao 1.16.1

Sean 2020-07-31T00:12:49Z

have this issue in 1.16.1 as well

Fibrowolf 2020-08-14T22:24:58Z

1.16.2 beacon advancement only works if base of beacon is on or above y64. If below that advancement doesnt work

Justin Barker 2020-11-22T22:38:14Z

Still experiencing this issue in 1.16.4

Avoma 2020-12-23T15:34:05Z

Can confirm in 20w51a.

MMK21 2021-09-06T07:58:42Z

Affects 1.17.1

Oblio 2021-10-20T15:40:46Z

This also occurs if the beacon has water above it.

MMK21 2021-12-04T17:30:35Z

Affects 1.18

MMK21 2021-12-12T07:07:13Z

Seems to be fixed in 1.18.1. Can anybody else reproduce?

[media]

MrMelanzane 2021-12-30T01:59:10Z

Affects 1.18.1, but only from a fresh instance of minecraft (i.e. from clicking start in the launcher) where you haven't gotten the advancement(s) so far, even between different worlds.

[media]

MrMelanzane 2022-02-02T21:32:00Z

Affects 22w05a

MrMelanzane 2022-02-16T23:55:35Z

Affects 22w07a

MrMelanzane 2022-02-21T18:49:55Z

Affects 1.18.2-pre1 and 1.18.2-pre2

MrMelanzane 2022-02-23T21:33:43Z

Affects 1.18.2-pre3

MrMelanzane 2022-02-25T23:49:38Z

Affects 1.18.2-rc1

Evan 2022-06-16T19:23:42Z

Affects 1.19

Robert Mallet 2022-08-21T03:42:43Z

I encountered this problem on a vanilla server in 1.18/1.19 after building an 8-beacon array at the bottom of the world underneath a 5-story house at sea level with a conical roof on top, and all the blocks above the beacons are stairs or slabs or pressure plates or doors. I am not going through the effort of demolishing even a single column of that just so that I can get the advancements, thank you very much! >:[

VitaminWhy 2023-07-09T19:00:34Z

Affects 1.20.1

handsomep 2024-03-16T20:27:41Z

Affects 1.20.4

In my case, there were no blocks per se anywhere directly above the beacon, but blocks one square over had a ladder on them. The light obviously still shone through the empty hole, but no advancements were granted upon completion of the beacon. Not sure if was due to the ladder or the fact that it was below y=0 as I have seen suggested in other threads.

What I did was break the beacon and rebuild the structure much higher up in an open space. Got the advancements, destroyed it again, and rebuilt it yet again where I originally wanted lower down. Took about 5 minutes or so.

Exovoid 2024-07-03T08:34:22Z

Tried on 1.21 and it still affects them.

kohni_5 2025-02-05T12:32:36Z

Effects 1.21.4