re: â€¦Any help in getting rid of this wall will be appreciated.
Did you make a new Style or did you edit the Standard Wall Style?
Assuming you have a new named style:
First, go to the Properties dialog for the Wall tool. On the "General" page, set "Wall Styles" to "Standard".
Second, delete any "Presets" that may contain the errant Wall Style
Third, find all the inserted walls that contain the new wall style and change those to "Standard".
Save, close & reopen the drawing. This clears the "Undo" buffer.
You should now be able to delete the style from the Style Manager.
Designer, Deluxe, (Professional, Expert, Basic), Platinum
Windows 10 Pro (1803), 64-bit