Wall thickness calculated wrong

[NozzleMover 0]

Somhow the numbers do not match:

line width= 0.4

wall count=3

wall thickness =0.7???

The thickness is graied out and does not seem to change when changing wall count or line width.

 

What is wrong there. I am using current version of Cura on a mac. I 

[NozzleMover 0]

 OK, I clicked on the! Next to wall line countc and set it back to an automatically calculated value. Then the wall thickness was unlocked. Now setting the walls thickness three times the line with brought the wall kine count back to three but now showed the right wall thickness. Print is running and we will see if that solved the problem. 

This post brought me on that track:

 

Edited April 17, 2018 by NozzleMover
Link added

[NozzleMover 0]

It seems to me that either I am asking the wrong questions or no one is actually in this forum. 

Nevertheless:

I change the wall thickness to 1.05 and Cura shows in layer view 6 lines for a 2.1 mm part using a 0.35mm nozzle. 

Results look still strange. Outer wall is sometimes missing.

Anyone an idea?

[NozzleMover 0]

With Slic3r the exact same part, with the same settings, prints right.

 

Come on Cura-guys! The problem I described above is truly a problem in Cura. You should be interested in fixing that.