Impossible to step into nuget package

I have a dotnet7 console app with a nuget package created by my team.

I tried to step into the class from my console app to the package class but I have this window that popenter image description here

Though, I did as usual which is to build and Pack the project, grab the .nupkg file and paste it into my localNugetpackage folder that I use for testing and install it.

This time it does not let me step into.

Am I missing something ?

Thank you

I tried to remove the package, reinstall, closing opening VS but same problem.