[MC-1334] Copied Map Goes Blank When Another Map is Used Created: 30/Oct/12  Updated: 30/Apr/17  Resolved: 11/Jun/16

Status: Resolved
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.2, Minecraft 1.4.7, Snapshot 13w03a, Minecraft 1.5.2, Minecraft 1.6.2
Fix Version/s: None

Type: Bug
Reporter: James M. Welch Assignee: Unassigned
Resolution: Cannot Reproduce Votes: 15
Labels: None
Environment:

Windows 7, 64 bit Java.


Attachments: JPEG File Glitchy Map.jpg    
Issue Links:
Duplicate
is duplicated by MC-6696 Revealed area in map becomes "blocked" Resolved
is duplicated by MC-10115 Map Unreavels perminate Resolved
is duplicated by MC-11948 Map contents dissapear Resolved
is duplicated by MC-24150 Maps go blank Resolved
is duplicated by MC-27851 Map scaling STILL breaks the map Resolved
is duplicated by MC-2761 map disappears Resolved
is duplicated by MC-4761 Maps being cleared Resolved
Relates
relates to MC-73 Green arrow bug on maps in frames Resolved
CHK:
Confirmation Status: Community Consensus
Game Mode: Survival

 Description   

What I expected to happen was...:
The map I copied would work the same as the map I had before. Once I switched back to it from a different map.

What actually happened was...:
The new map I created and the one I created it from went blank when I switched to another map as it was updating. Until I logged back in, the map showed nothing but white and a cursor.

Steps to Reproduce:
1. Make a map (it was size 2 if I recall)
2. Copy map by putting it on a crafting bench with an empty map.
3. Shift click map (not sure if it was important that I did.)
4. Switch to another map when copied map is updating
5. Switch back to other map
6. Rage



 Comments   
Comment by Fabian Röling [ 10/Jun/16 ]

The instructions are a bit unclear. For example: Should I open the copied map (stack of 2) before switching to the other one? And can the other one be of the same area? And should I create it when switching to it or should it be pre-created?
I tried some combinations and none of them triggered the bug in 1.10.

Comment by Galaxy_2Alex [ 30/Oct/14 ]

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.

Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been deliviered.

Comment by Petr Bolland [ 14/Dec/13 ]

Same thing happened to me when scaling a map in 1.6.4. Just like Poker Chen
steps:
Made map (#0), scaled it to x8 (became #1,#2,#3) and explored a bit.
made map elsewhere (#4), scaled it (briefly #1, then #5), again (briefly #2, then #6) and to x8 (briefly #3, then #7).
Checked map #3 with each scale step, it was fine until it blanked the explored part when enlarging map #6 to x8. It must be the brief overlap that does it.
Made map (#8), scaled it (briefly #5, then #9), again (briefly #6, then #10) and to x8 (briefly #7, then #11), found map #7 blanked.
The copies of my maps on the wall also went blank.

When I restarted Minecraft, all 3 maps were back to normal.

It would be nice if the number stayed the same when scaling maps. It's better to have maps #0,#1,#2... instead of #3,#7,#11...

Comment by Adam Roberts [ 15/Sep/13 ]

Yes, i created a map in 1.6.2 with another map in my inventory, and my old map went blank.

Comment by Doug South [ 18/Aug/13 ]

Thankfully, the next time I played, the map repainted the explored areas.

Comment by BoxFigs [ 17/Aug/13 ]

When I played two of my worlds in 1.6 that I haven't played since 1.5, all the maps that I had drawn returned to normal. I haven't tested if drawing a new map (or exploring new areas on an existing map) will cause the rest to turn blank again. I might try it out, since I don't really care for the maps anymore.

Comment by Doug South [ 17/Aug/13 ]

I've had a map blank on me in 1.6.2. And just like Poker Chen commented, I noticed that the new map I was creating briefly had the same map # (#3) as a previously created map and then switched to a new # (#7). After this, map #3 was blank.

Comment by Nicolas Vacher [ 25/Jun/13 ]

Same in 1.6

Comment by BoxFigs [ 18/Jun/13 ]

This has been happening to me ever since I got Minecraft (soon after 1.5 came out) in both singleplayer and multiplayer. In the first world I made, it took a few maps before the earlier maps I made started to turn blank. But since then, whenever I draw another map the previous map I made goes blank. I also noticed that sometimes a few pixels return, but then it stops drawing.

I have a screenshot of what a map looks like the last time it happened, on my server in the current version (1.5.2). I'm going to attach it to this.

Comment by Christophe Gillijns [ 06/May/13 ]

Since the latest version I don't have any problem with it anymore.
Same with some other bugs like the painting that dissapear it seems solved.

Comment by Tails [ 06/May/13 ]

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Comment by Fjodor Dostojewski [ 27/Mar/13 ]

I have the same problem: created a map, then zoomed out 2 times. After creating another map + 2 zooms in the new one, the contents of the first map disappeared.

@Christophe
The first map you create is a very zoomed in version, you have to zoom out first to get unexplored areas on it.

Comment by Christophe Gillijns [ 15/Mar/13 ]

I don't know but when i use a map it iz always showing the complete map immediatly.
I don't have to run around to explore everything.
I just use the map and it show immedialty the whole square (map). Which is weird as I saw on youtube the map was building up during the exploration.
So on youtube you got only a small part discovered and it was funny to see it grow.
Now it is just like you buy a complete map of a square with everything on it.

Comment by Poker Chen [ 08/Mar/13 ]

Confirming. It seems that while the map is blanked out, you can still explore new chunks that have not yet been revealed. In other words, if the map that disappears hasn't been fully explored, only the explored bits get blanked, but you can still uncover the parts that has never been recorded in that map. This results in what looks like a blank cloud hanging over only the old bits.

In order to recreate this observation: do up a far zoom map, explore it somewhat, and create new maps until it blanks. ( I'm trying to make a 3x3 wall frame of zoom level 2 maps that shows in detail my level 3 and level 4 maps. It seems that when creating a map, it is initially assigned a number corresponding to a map that already exists thus blanking out that map. After a second or two, the map number updates to the expected.

Comment by Stoneforged [ 19/Jan/13 ]

This bug also exists in the 13w03a snapshot, except it appears you are only allowed to have 17 maps saved at a time before it erases the primary maps you started with in sequential order.

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