Bug in Map Manager?

[Guest]

Hi,

I have splited the world map into 4 pieces (each 4096 pix). Then entered the calibration selecting four known points (datum WGS84) but surprisingly Map Manager do not save the calibration data for this map. Seems Map manager is not accepting the value "0" for lat/long in any case. Someone please clarify about what I'm doing wrong or is it a bug in the Map Manager. The calibration data is as follow (for part-1).

Pcs-1:Point-1 (top-left corner):-
Lat - N85.05112878
Long - W180.00000000

Point-2 (bottom-right corner):-
Lat - N0.00000000
Long - E0.00000000

Point-3 (bottom-left corner):-
Lat - N0.00000000
Long - W180.00000000

Point-4 (top-right corner):-
Lat - N85.05112878
Long - E0.00000000