What causes (MAP01:Map Name) and other things in GZDoom builder?

[THMG]

As usual, the question's in the title: What causes the screenshot, the "End Normal" line special to cut directly to the credits, and "MAP NAME" to appear on the ENDMAP screen?

Furthermore, how do I change the "Map Name" text to the name I'd actually like to use?

This all happened after I inserted a script to raise a ceiling and lower a floor at different rates, is it related somehow?

google drive link to the .wad without external resources

The End Normal line is in the highlighted area.

Edited December 14, 2017 by THMG : added a link to the .wad/screenshot of where the end normal line is

[THMG]

I figured out the cause: GZDoom Builder mysteriously generated a faulty mapinfo that was overriding my original one.