I had the exact same problem with my game.
The only thing I did was make this:
Then there suddenly wasn't any encounters in the map anymore.
Logic tells me that the game will interpret this as being on a vehicle, even though the condition isn't true.
I can't think of any other solution...
New Demo is up. V1.003.
Updated many game scenes to improve the story.
Added new "Bonus EXP" screen.
Updated the trophy scene for more fluid gameplay.
Updated the "Battle Tickets" earned.
Removed a few "Yellow Stone" rewards.
Upgraded the enemies for more balanced battles.
Your "save game" can...
Well, I know the game inside and out, but I wouldn't be neutral in my comments I think.
I think the game is awesome, but that's not how everyone sees it.
I'll learn more from other's people opinions anout the game.
That way I can improve and better the game.