Wall glitch in Doom Builder 2

[Sito1000]

Having this weird bug in a map I'm making, this 2D wall has full collision, is only textured on one side, and I can't get rid of it. It shows up when I demo the map, but not in 3D view. I've tried deleting and re creating the sector it's in, but I'm fairly new to the program so I'm not sure what else to try. Edit: I had deleting and replaced the wrong sector lmao, it's fixed now.

Edited October 17, 2021 by Sito1000