ikill69

@devhl-labs You are absolutely right. I did another diff and compared to the swagger and it is the readOnly. When I did my first check I thought I had some...

@devhl-labs good point. That brings it back to "format" being the issue again. It is the only other property that mirrors the output. This is the section of the swagger...

They are making some movement in the issue [System.Text.Json can't deserialize type with more than 64 ctor parameters.]( https://github.com/dotnet/runtime/issues/71984) see the PR here https://github.com/dotnet/runtime/pull/75982 So limiting the number of parameters...

@devhl-labs I came to the exact same conclusion. The other library is doing it differently and I think it is to do with Newtonsoft being able to set Private properties....

Thanks for the Info @devhl-labs