I have similar problem in vanilla Minecraft v1.5.2. I crafted and opened new map - called "Original" and explored some terrain with this map. Next I have zoomed out my "Original" - only one zoom level. Next I have cloned this map so I got 2 pieces of "Original". First map was normal but second one was quite unexplored. I have moved to some terrain to check whether it is updating. Well, it was but there were single dots on the map mainly in area that I currently exploring. Next I have opened menu and select "Save and quit to title". I have closed Minecraft and opened it again. My maps seems to work from now on.
EDIT: I have attached 4 screenshots to better understand my problem, they are called: 1 - Original map - one zoom applied.jpg 2 - Clone of Original map - map is corrupted.jpg 3 - After game restart - Original map - one zoom applied.jpg 4 - After game restart - Clone of Original map - map seems to be ok.jpg
Tomasz Mikulski
I have similar problem in vanilla Minecraft v1.5.2.
I crafted and opened new map - called "Original" and explored some terrain with this map.
Next I have zoomed out my "Original" - only one zoom level.
Next I have cloned this map so I got 2 pieces of "Original".
First map was normal but second one was quite unexplored. I have moved to some terrain to check whether it is updating. Well, it was but there were single dots on the map mainly in area that I currently exploring.
Next I have opened menu and select "Save and quit to title". I have closed Minecraft and opened it again. My maps seems to work from now on.
EDIT: I have attached 4 screenshots to better understand my problem, they are called:
1 - Original map - one zoom applied.jpg
2 - Clone of Original map - map is corrupted.jpg
3 - After game restart - Original map - one zoom applied.jpg
4 - After game restart - Clone of Original map - map seems to be ok.jpg