updateboard turns Gmap tiles to water
 

Alright..
Whenever I use the updateboard(x,y,w,h) command, it turns the updated area into water tiles. This only occurs on the gmap.

Is this a bug in the server, or what? I know I've seen it used on a gmap before, without this problem.

I get the same thing (wrong tiles).

Updateboard works on the top left corner level of a gmap though.

I believe you're updating the wrong area. It only works in the upper left corner since the coordinates are acting as if it's one level, which a gmap is not. Use onmapx and onmapy to figure out the coordinates you are updating on the gmap and update those coordinates instead.

That's what I originally thought. It didn't change at all when I tried that.