Now that we can fix that problem.
Please install this patch.
NAME.en=Skip World Map Fix
Also, there is a bug where you will run out of buffer for road IDs when you go both routes at the same time.
If you do not reset and go around the continent, you will run out of buffers to show the way to the final chapter.
There is also a patch here.
NAME.en=Fix SetupNewWMRoute. Do not draw the road again.
With these two patches, problems that exist in the world map can be solved.