I have a problem with the map. There are many black tiles on a pre-explored map, these tiles moves around every time I log on. It's been that way a long time, and I do not know how to fix it. Help please? I use Enders client and have made a post about it in the Ender thread, with no response. I see the Amber client have the same problem, the mapfile warning.
I do not see any response in that thread either regarding this issue. Is this a client thing or? How have people fixed this?