Hi Encric,
Can you send us the key you're actually using to support@nevron.com as well as the exact version number of the chart assemblies (just right click on Nevron.Chart.dll and check the version number). We need this information to verify whether the key is correct and whether it appropriate for this version number.

Best Regards,
Nevron Support Team

Hello.

We have Nevron Chart for .NET Enterprise + Subscription - 3 keys.

Hello.
We bought an Enterprise license. But for some reason she stopped working. How can this be fixed? We have the latest version of Nevron Chart. Dotnetvision2019vol1vs2019 and work with Visual Studio 2019. My develop license work, but in clients nevron chart .net enterprise now is not working (it work good from 2016, but now is not working).
And we use .NET Framework 4.8.

This is example of my test c#:

public partial class App : Application
  {
   private const string NevronEnterpriseLicence = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX;

   protected override void OnStartup(StartupEventArgs e)
   {
    NLicense license = new NLicense(NevronEnterpriseLicence);
    NLicenseManager.Instance.SetLicense(license);
    NLicenseManager.Instance.LockLicense = true;
    System.Threading.Thread.CurrentThread.Name = $"App-OnStartup-{System.Threading.Thread.CurrentThread.ManagedThreadId}";
    WpfSingleInstance.Make(System.Reflection.Assembly.GetExecutingAssembly().GetName().Name, this);
    base.OnStartup(e);
   }
  }[/quote]