Walkthroughs for custom maps.

Damn it, with these game bugs. Please, someone explain to me why it's impossible to fly from point A to point B and from point C to point D? Regardless of the movement points available, and even if you increase them using the Hat of Magic or even enable infinite movement with a cheat? I'm playing fairly, but in this case, I simply don't understand what the problem is, but it's definitely not that I don't have enough movement points. Could it be because the path runs along the very edge of the map (I specifically shortened it so it would be visible)? The map is "007 chases Dr No," in case anyone doesn't know. Someone wrote that the author "calculated everything to the millimeter," so I want to understand: either I don't know something about Flight, or the map author managed to find another undocumented feature or bug in the game. From the description of Flight in the game manual:

The hero can move through water and any objects on the adventure map, but cannot stop on them.

I have a little left to go, but the toughest battles are ahead (although, if you go with the "right" army, they are easy and short). And right now, I need to gather creatures for one difficult quest, and then for defeating Isra.