Difference in height for the wall of the same building?

[Dienstbier]

Hello community.
How does that happen that I have different wall heights in a building?
I have set the grid to the minimum.
The wall bought and placed new.
Nevertheless, the wall is a tick higher than the side wall.
Even if I copy the side wall, there is the same problem.
I had divided the house to enlarge it and pulled the front halves forward slightly.
The opposite wall is dead straight and has no kink.

What am I doing wrong?

By the way, it would be nice if the grid settings were somehow saved.
I don't like the big attitude, but I have to change it every time.
I've already tried the site, but buildings are even more cruel.
You have to constantly create new groups to close any gaps, then everything flickers, or you have minimal height differences.
So the edges are created. Especially when you need a lot of objects to close small holes (in archways).
You really have a lot of options, but life is made unnecessarily difficult with the lack of options or restrictions.

Do I have to tear down the building and build it again so that it finally works?

With the Shift key it stays too high or becomes too low.
So always the same problem.
Although the grid height is 0.

 

[Nioell]

Do the walls actually line up on the ground? From this perspective it kinda looks like the "higher" wall is placed a little farther back on the other side of a gridline and that makes it look like it's at a different height even though it isn't.

 

[Dienstbier]

The wall was exactly the same height, I checked it from the side. Since I also assumed that it could have been a mistake on my part.
But the windows didn't fit either.

But it also snapped into place on the corner. The walls joined.
However, two panels changed due to an adjacent wall.
The lower AND the upper.

This would not happen if the wall connected too far back.


I deleted one page where it was too high and copied the appropriate row entirely. It works now.
Before that, I wanted to put the plates one by one.

I don't know what caused the mistake.

 

[Nioell]

Strange, maybe it was a glitch. At least you were able to fix it