I have been building a basic floor plan and after doing an 4 horizontal siding wall I now can not adjust any wall on my project.
Hi and welcome to the forum!
Do you mean that you cannot select the walls, cannot move them or you cannot change the settings in Wall Properties?
Can you select them in 3D.View?
If you just cannot select them in Plan view, are you on the correct Location? (if the walls are on the Ground Floor but you have selected the Second Floor, then you will not be able to select them).
If this does not solve the problem we will need more details of exactly what you mean by "cannot adjust any wall".
Allan