Duplicate Floor scrolls for no reason

[Autosaver]

For whatever reason, there are little sections of the floor that are scrolling.

Edit:fff should of devmode

 

[K.S.]

Duplicate of http://mb.srb2.org/showthread.php?t=33737.

Oh, and for the millionth time, DEVMODE isn't required anymore.

Location: X:-11641 Y:12660 Z:4392 A:264
Mapname: ARID CANYON ZONE 1
Mapnum: MAP13