Vanishing convex ceiling corner

[VillainousPotato]

So I was editing my CS and putting a ceiling on my wall for the finishing touches. I selected another entity and tried to move it. Instead it moved the ceiling that I had just placed(I must not have selected the other item by accident). Realizing this, I pressed 'control z'. The ceiling part disappeared and I discovered it later tilted to the side and shoved directly in the middle of my adjacent hallway. I discovered this while playing my map and went back and checked it in the editor. It doesn't appear in the editor though. I have no way of deleting it but it is still in the map. What do I do?

[Adny]

Clear you map cache. Simply navigate to your maps folder and delete any file with "cache" in the name.

[VillainousPotato]

I did that, but now whenever I launch the custom story the ceiling is still there and if I exit and go to my map file, the cache is there again.

[PutraenusAlivius]

Click CTRL + F and find your ceiling. Just input the name and when you found it, delete it.

[Romulator]

It also could just be visible from one side, but not another. Most of Amnesia's static_objects are only visible from a particular viewpoint of angles, adjusting your POV in the Level Editor in that room may reveal its location, but like JustAnotherPlayer said:

Click CTRL + F and find your ceiling. Just input the name and when you found it, delete it.

That will work just the same

[VillainousPotato]

Yeah it worked, but the name in inspector mode was different than its actual name, so I ended up scrolling through the list of objects. However I did look on both sides. So I don't know what happened.