what am i doing wrong? they were gone until i wiped the map this last time, and now i can't remove them. please help! 

"Arena Walls": {
"Enabled": false,
"Stacks": 0,
"Ignore Stack Limit When Clipping Terrain": true,
"Use Stone Walls": false,
"Use Iced Walls": false,
"Use Least Amount Of Walls": true,
"Use UFO Walls": false,
"Radius": 25.0
},

thanks in advance.  :)

hi, that is how you remove them.

either you have a json error, or its enabled in a different profile, or your copypaste files have highwalls in them.