Doom Bug

I was reloading my WAD after turning on permanet freelook for the test engine

After leaving the first area and going to the next one i saw this

http://trooper077.deviantart.com/art/Doom-Bug-142175070

I tried using lower and upper unpegged and nothing happened

im using ZDOOM(doom in UMF) Format

Any suggestions on what to do?

Lower Unpeg is going to make it cut into the ceiling, and Upper Unpeg is going to make it cut into the floor.

You can do one of three things here: make the shaft as tall as the texture, make the texture as tall as the shaft, or make each side of the grate have a different sector with different properties (even if it means using a sector brightness with 1 less than the other side).

ZDoom has a line flag that enables proper clipping. Can't say how it's named in DB2 though.

"Clip middle texture" apparently.

Got it thanks for the help!