[MC-157590] Map sometimes shows "unknown map" when not in the player's inventory

The bug

As can be seen in the screenshots, the map says "unknown map" in the chest's inventory and has actual information, when in the player's inventory.

[media]

How to reproduce

Get a map and right click it to make it a filled map
Put it into a chest
→ ✔ Map still has its information in the tooltip
Leave and rejoin the world
→ ❌ The map's tooltip says "unknown map"
Move the map into your own inventory
→ ✔ The information becomes visible again

Linked issues

is duplicated by

MC-136142 Maps stored in a shulker box in the player inventory randomly become "unknown map"

MC-138322 Treasure and explorer maps show "Unknown Map" after placing them in container and reloading world

MC-241007 Maps lose ID-data when placed in a chest/container

MC-262306 Maps in chests turn into 'Unknown map' every time you restart the game

relates to

MC-118141 Tooltip of Ocean and Woodland Explorer maps shows "Unknown Map" in villager trading GUI

Attachments

Comments

anthony cicinelli 2020-07-26T23:49:19Z

What exactly is the bug here? Can you explain?

ZYX_2D 2020-07-27T00:31:04Z

@Anthony Cicinelli

Thou U may not know Chinese, I think U can apparently find that the txts of the Filled Maps in the 1st & the 2nd screenshot R different 😛. The shorter 1 only says "Unknown Map" (未知地图), while the longer 1 gives U the particular info.

anthony cicinelli 2020-07-27T00:39:54Z

Does this still happen in 1.16.1?

NeunEinser 2020-07-27T00:57:34Z

Yes, could reproduce.

ZYX_2D 2020-07-27T01:09:03Z

@Anthony Cicinelli

IDK, but I was sure that it happens in 20w30a.

anthony cicinelli 2020-07-27T01:10:07Z

It seems NeunEinser has confirmed it and cleared it up a bit.

migrated 2020-10-18T11:45:32Z

Affects 1.16.3
The equivalent bug on Bedrock is MCPE-37740

Avoma 2021-01-16T15:50:02Z

Can confirm in 20w51a.

Mr_Quasi 2021-11-08T23:47:11Z

Still not fixed in 21w44a

Mr_Quasi 2021-11-11T17:08:23Z

Confirmed for 1.18 pre-release 1

Mr_Quasi 2021-11-17T10:33:44Z

Confirmed for 1.18 pre-release 2

Mr_Quasi 2021-11-17T21:32:09Z

Confirmed for 1.18 pre-release 3 and 4

Mr_Quasi 2021-11-20T10:54:40Z

Confirmed 1.18 pre-release 5

Mr_Quasi 2021-11-23T11:24:27Z

Confirmed 1.18 pre-release 6

Mr_Quasi 2021-11-23T17:33:56Z

Confirmed 1.18 pre-release 7

Mr_Quasi 2021-11-24T17:04:35Z

Confirmed 1.18 Pre-release 8

Mr_Quasi 2021-11-25T15:17:44Z

Confirmed 1.18 Release Candidate 1

Mr_Quasi 2021-11-26T19:20:54Z

Confirmed 1.18 Release Candidate 3

Mr_Quasi 2021-11-30T08:05:43Z

Confirmed 1.18 Release Candidate 4

Mr_Quasi 2021-12-03T22:05:03Z

Confirmed 1.18.1 Pre-Release 1

Mr_Quasi 2021-12-07T21:35:33Z

Confirmed for Minecraft 1.18.1 Release Candidate 1

Mr_Quasi 2021-12-10T01:43:10Z

Confirmed for Minecraft 1.18.1 Release Candidate 2

Mr_Quasi 2022-01-19T19:17:19Z

Confirmed for snapshot 22w03a.

Mr_Quasi 2022-02-02T17:30:03Z

Confirmed for snapshot 22w05a.

Mr_Quasi 2022-02-09T22:53:57Z

Confirmed for snapshot 22w06a.

Mr_Quasi 2022-02-16T19:40:00Z

Confirmed for snapshot 22w07a.

Mr_Quasi 2022-02-18T16:44:35Z

Confirmed for 1.18.2 pre-release 1.

Mr_Quasi 2022-02-21T16:33:37Z

Confirmed for 1.18.2 pre-release 2.

Mr_Quasi 2022-02-23T16:47:35Z

Confirmed for 1.18.2 pre-release 3.

Mr_Quasi 2022-02-25T14:22:06Z

Confirmed for 1.18.2 release candidate 1.

Mr_Quasi 2022-02-28T14:45:49Z

Still not fixed... Confirmed for 1.18.2

Mr_Quasi 2022-03-19T09:05:26Z

Confirmed for snapshot 22w11a.

Mr_Quasi 2022-03-24T21:35:26Z

Confirmed for snapshot 22w12a.

Mr_Quasi 2022-03-31T20:03:22Z

Confirmed for snapshot 22w13a.

Mr_Quasi 2022-04-06T16:47:27Z

Confirmed for snapshot 22w14a.

Mr_Quasi 2022-04-13T20:17:11Z

Still not solved in snapshot 22w15a.

Mr_Quasi 2022-04-20T18:02:08Z

Confirmed for 22w16b.

Mr_Quasi 2022-04-27T18:03:41Z

Confirmed for snapshot 22w17a.

Mr_Quasi 2022-05-04T19:53:43Z

Still not solved in snapshot 22w18a.

Mr_Quasi 2022-05-12T20:25:10Z

Confirmed for snapshot 22w19a.

Mr_Quasi 2022-05-18T18:07:38Z

Confirmed for 1.19 pre-release 1.

Mr_Quasi 2022-05-23T21:58:19Z

Confirmed for 1.19 pre-release 2.

Mr_Quasi 2022-05-25T14:32:26Z

Confirmed for 1.19 pre-release 3.

Mr_Quasi 2022-05-30T16:31:30Z

Confirmed for 1.19 pre-release 4.

Mr_Quasi 2022-06-02T14:21:16Z

Confirmed for 1.19 pre-release 5.

Mr_Quasi 2022-06-02T14:22:54Z

Confirmed 1.19 Release Candidate 1

Mr_Quasi 2022-06-03T21:52:58Z

Confirmed 1.19 Release Candidate 2.

Mr_Quasi 2022-06-07T18:53:35Z

Confirmed for 1.19.

Mr_Quasi 2022-06-15T18:00:41Z

Confirmed for snapshot 22w24a.

Mr_Quasi 2022-06-21T19:13:51Z

Confirmed for 1.19.1 Pre-release 1.

Mr_Quasi 2022-06-30T20:22:24Z

1.19.1 Pre-release 2.

Mr_Quasi 2022-07-06T15:48:26Z

1.19.1 Pre-release 3.

Mr_Quasi 2022-07-13T19:34:50Z

1.19.1 Pre-release 4.

Mr_Quasi 2022-07-18T20:24:54Z

1.19.1 Pre-release 5.

Mr_Quasi 2022-07-26T20:34:06Z

Confirmed for 1.19.1 Release Candidate 3.

Mr_Quasi 2022-07-27T18:34:48Z

Confirmed for 1.19.1.

Mr_Quasi 2022-08-06T19:08:02Z

Still not fixed in 1.19.2

Mr_Quasi 2022-10-19T14:13:04Z

Confirmed for snapshot 22w42a.

Mr_Quasi 2022-10-26T13:22:04Z

Still not solved in 22w43a.

Mr_Quasi 2022-11-02T14:41:14Z

Another week, no fix. Still confirmed in snapshot 22w44a

Mr_Quasi 2022-11-10T15:20:31Z

Confirmed for snapshot 22w45a

Mr_Quasi 2022-11-16T21:15:57Z

Confirmed for snapshot 22w46a

Mr_Quasi 2022-11-22T16:17:23Z

Confirmed for pre-release-1 1.19.3

Mr_Quasi 2022-11-23T20:09:01Z

Confirmed for 1.19.3 pre-release 2

Mr_Quasi 2022-11-30T09:11:41Z

Confirmed 1.19.3 pe-release 3

Mr_Quasi 2022-12-02T09:11:31Z

Confirmed 1.19.3 release candidate 1

Mr_Quasi 2022-12-06T11:52:42Z

Confirmed for 1.19.3 release candidate 2

Mr_Quasi 2022-12-06T11:52:47Z

Confirmed for 1.19.3 release candidate 3

Mr_Quasi 2022-12-08T14:21:03Z

Confirmed for 1.19.3

Mr_Quasi 2023-01-19T11:21:39Z

Confirmed for snapshot 23w03a

Mr_Quasi 2023-01-25T11:06:18Z

Still present in snapshot 23w04a

Mr_Quasi 2023-02-02T13:10:53Z

Still not adressed in 23w05a.

Mr_Quasi 2023-02-09T11:27:36Z

Confirmed for snapshot 23w06a.

Mr_Quasi 2023-02-20T07:25:41Z

Confirmed for 23w07a.

Mr_Quasi 2023-02-22T19:28:25Z

Confirmed for 1.19.4 pre-release 1

Mr_Quasi 2023-03-02T13:17:16Z

Confirmed for 1.19.4 pre-release 3

Mr_Quasi 2023-03-10T13:42:04Z

Confirmed for 1.19.4 pre-release 4

Mr_Quasi 2023-03-10T14:06:05Z

Confirmed for 1.19.4 Release Candidate 2

Mr_Quasi 2023-03-14T17:32:38Z

Still not fixed in 1.19.4 full release

migrated 2023-03-28T20:18:41Z

Observing this issue for quite a few versions. Can confirm this is still present in 1.19.4.

Mr_Quasi 2023-03-28T21:40:32Z

Indeed, nothing has changed in 1.19.4, and it's a very noticeable bug as well.

Mr_Quasi 2023-03-29T15:24:40Z

Confirmed snapshot 23w13a

Mr_Quasi 2023-04-05T15:24:24Z

Still present in snapshot 23w14a

Mr_Quasi 2023-04-24T15:56:04Z

Confirmed 23w16a

Mr_Quasi 2023-04-27T11:07:24Z

Still not fixed in 23w17a

Mr_Quasi 2023-05-03T15:17:26Z

Still present in 23w18a

Mr_Quasi 2023-05-11T11:12:35Z

Still not solved, 1.20 pre-release 1

Mr_Quasi 2023-05-18T07:24:03Z

Confirmed in 1.20 pre-release 2.

Mr_Quasi 2023-05-19T23:19:43Z

Still present in 1.20 pre-release 4.

Mr_Quasi 2023-05-24T09:02:06Z

Still not adressed in 1.20 pre-release 5

Mr_Quasi 2023-05-25T14:35:49Z

Still present.... 1.20 pre-release 6

Mr_Quasi 2023-05-31T14:30:10Z

Confirmed for 1.20 release candidate 1

Mr_Quasi 2023-06-07T15:08:59Z

Still present in 1.20 full release

Mr_Quasi 2023-06-14T11:15:15Z

Still present in 1.20.1, not edit to list yet?

Mr_Quasi 2023-08-11T11:59:41Z

Confirmed for snapshot 23w32a.

Mr_Quasi 2023-08-18T08:48:31Z

Still not adressed in snapshot 23w33a

Mr_Quasi 2023-08-30T14:22:21Z

Confirmed for snapshot 23w35a

Mr_Quasi 2023-09-07T11:19:14Z

Stil not adressed in 1.20.2 Pre-release 1

Villager related issue... The perfect moment to adress it with the revamp of trading...

Mr_Quasi 2023-09-18T10:48:44Z

Still present in 1.20.2 Release Candidate 1

Mr_Quasi 2023-09-22T13:54:55Z

Not addressed in 1.20.2

Mr_Quasi 2023-10-06T12:47:33Z

Confirmed snapshot 23w40a

Mr_Quasi 2023-10-23T08:01:01Z

Confirmed snapshot 23w42a

Mr_Quasi 2023-10-26T14:45:36Z

Still not addressed in 23w43a

Mr_Quasi 2023-11-09T12:01:16Z

Present in 23w45a

Mr_Quasi 2023-11-17T12:18:49Z

Still not addressed in 23w46a

Mr_Quasi 2023-11-22T15:32:54Z

still present 1.20.3 pre-release 2

Mr_Quasi 2023-12-02T08:26:13Z

1.20.3 release candidate 1

Mr_Quasi 2023-12-08T12:52:25Z

Still not addressed in 1.20.4

Mr_Quasi 2023-12-19T07:44:21Z

Still present in 23w51b

Mr_Quasi 2024-01-23T12:18:02Z

Present in snapshot 24w03b

Mr_Quasi 2024-02-03T13:04:59Z

Still not addressed in 24w05b

Lunarian 2024-05-20T21:05:25Z

Note: You have to use Advanced tooltips (F3+H).

Mr_Quasi 2024-05-20T23:41:47Z

That's not the issue.