Library ignores NonSerialized attribute in release version UWP

[diegotonetti99]

As stated in the title, the library is serializing all attributes of a c# class if standard NonSerialized attribute is used. Every nuget package is up to date to the last version. The library works fine in debug mode, only serializing the desired attributes.

Steps to reproduce

[Serialized]
public class ImageContent {
     public Rect Rectangle;
     public string ImageFile;
     [NonSerialized] public Image image;
}

this fails because Image object can't be serialized, but also with other objects that can be serialized the NonSerialized attribute is ignored in release mode.

Workaround

Substitute the Serialized and NonSerialized attributes with

[JsonObject]
public class ImageContent {
     public Rect Rectangle;
     public string ImageFile;
     [JsonIgnore] public Image image;
}