Cura "forgets" to slice wall

[driesdokter 0]

I have an stl with thin walls that divide a cube in 4 parts and somehow CURA does not want to slice them. Can reproduce this every time.

See images

Edited February 28, 2020 by driesdokter
typo in title

[burtoogle 516]

There is a print thin walls setting, make sure that is enabled.

[driesdokter 0]

This indeed does the trick, but I don't understand:The inside walls are all of the same width!

[burtoogle 516]

1 hour ago, driesdokter said:

This indeed does the trick, but I don't understand:The inside walls are all of the same width!

 

Yes, but maybe that width is right on the threshold. If you very slightly reduce the wall line width, do all the walls get printed?