Attack Range Problem

[Peachy]

So I've loaded up my hack with my first events, and I was ready to play it for errors. Well, I encountered one as soon as I moved my units. What it looks like before I select my unit is shown in the following attachment.

Looks kinda normal. I haven't selected Sage!Marcus yet, so everything looks fine. But, when I select Marcus, I get the image in the following attachment.

Woah, where did Marcus go. And why does Elfire (the only weapon he possesses) have infinite range (the map is 20x20, and Marcus starts in (IIRC) [6,5]?

I'm not going to move Marcus anywhere, and just press A. As you could guess, Marcus can attack anywhere, as seen in the next attachment (Note: After this, if I attack any unit, even if I could normally attack them, I get a freeze.)

But wait, there's more. If I select a unit that can't equip its weapon (The Prince only has Thunder, and his Anima rank hasn't been altered), my screen looks like the following screenshot.

I'm not sure what happened. The only things I've edited in Nightmare are: Having the Chapter fade to map, and editing where the Prolouge Map is located.