Noclip Issue - Editing Questions - Doomworld

So, I was creating a new battle for my slaughtermap, but then I encountered a critical error: when I pass through a certain part of my map (which I dont know specifically), I noclip through some walls (not all of them), and I am unable to activate Walk Over triggers.

Things are gonna get strange here.

Noclip Shared Cancelled DOOM 4 Gameplay Footage

Unreleased DOOM 4 [cancelled] & DOOM 2016 Development Gameplay

Noclip Issue - Editing Questions - Doomworld

DOOM: All Over Again / Episode 1 - WAD Releases & Development - Doomworld

how to make a wide melee swing? - ZDoom

DoomEdNums: Unknown top level keyword ? - Doom Editing - Doomworld

first ever doom map, 300 hours in the making. would love some feedback! : r/ Doom

DOOM+ V1.3 addon - ModDB

Noclip Issue - Editing Questions - Doomworld

Hey guys, Here's a layout I made called Ahead. Thoughts? (Epilepsy Warning) It's also noclipped : r/geometrydash