HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Could you send me the map? I can't seem to replicate the bug.
Also, you're launching HD from the wrong shortcut (most likely one created during an early beta of HD 3). Create a new shortcut (it shouldn't have < Heroes3.exe.ini > at the end of the command line, but rather < #... >.