Setting lines as uncovered without apparent reason

[maneca]

Hi,

Let me start by thanking you by this tool.

I have a Xamarin (Android and iOS) project with several modules and for each module I have a unit tests project.
In some situations, the line coverage does not appear to be working correctly.
See the situation below

I don't understand how those lines appear uncovered since they are the definition of the structure of the JSON for the response of a REST request. Do you know if I am missing some configuration?

This is the runsettings file I am using (most of it is commented)

Thanks again.