Cura loses internal details

[Dweldz 4]

Hello

I have an air nozzle I'm trying to print it has internal cavities and passages.

I load it into Cura and look at the layers with the part laying on its side all the internal cavities and feratures etc are there.

I need to print this standing up right but when I rotate it up right and look at the layers most of the internal details are gone.

STL model looks fine tried it in AMF, no walls are too thin.

Image is a cross section.

Any ideas?

[Dweldz 4]

Never mind this was a self induced problem.

Not sure why but in the Cura expert setting fix horrible A and B where selected.

I turned those off and its printing happily as I type.